Prevent access to ElementInternals.shadowRoot for pre-existing shadow roots

[mfreed7]

This change restricts access to ElementInternals.shadowRoot for shadow roots which were pre-existing before a custom element upgrade/construction. See the discussion on Issue 871 for more context. This PR depends on the PR to add ElementInternals.shadowRoot. There is a corresponding DOM spec PR also.

• At least two implementers are interested (and none opposed):
  • Chromium - me.
  • WebKit: see this comment.
• Tests are written and can be reviewed and commented upon at:
  • Deny ElementInternals.shadowRoot for pre-created shadow roots web-platform-tests/wpt#25554
• Implementation bugs are filed:
  • Chrome: https://crbug.com/1042130
  • Firefox: …
  • Safari: …

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Parsing MDN data...
Parsing...
Generating HTML variant...
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "nonce"; previous heading contents are "2.6.6 Nonce attributes"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "[[CryptographicNonce]]"; previous heading contents are "2.6.6 Nonce attributes"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "nonce"; previous heading contents are "2.6.6 Nonce attributes"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "[Serializable]"; previous heading contents are "2.8.1 Serializable objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "[Transferable]"; previous heading contents are "2.8.2 Transferable objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "[[Detached]]"; previous heading contents are "2.8.2 Transferable objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <h4> element containing "StructuredSerialize ( value )"; previous heading contents are "StructuredSerialize ( value )"
Error: Element found with dfn type name and redundant export attribute; dfn is <h4> element containing "StructuredSerializeForStorage ( value )"; previous heading contents are "StructuredSerializeForStorage ( value )"
Error: Element found with dfn type name and redundant export attribute; dfn is <h4> element containing "StructuredDeserialize ( serialized,   targetRealm [ , memory ] )"; previous heading contents are "StructuredDeserialize ( serialized,   targetRealm [ , memory ] )"
Error: Element found with dfn type name and redundant export attribute; dfn is <h4> element containing "StructuredSerializeWithTransfer ( value,   transferList )"; previous heading contents are "StructuredSerializeWithTransfer ( value,   transferList )"
Error: Element found with dfn type name and redundant export attribute; dfn is <h4> element containing "StructuredDeserializeWithTransfer (   serializeWithTransferResult, targetRealm )"; previous heading contents are "StructuredDeserializeWithTransfer (   serializeWithTransferResult, targetRealm )"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "[HTMLConstructor]"; previous heading contents are "3.2.3 HTML element constructors"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "integrity"; previous heading contents are "4.2.4 The link element"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "content"; previous heading contents are "4.2.5 The meta element"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "http-equiv"; previous heading contents are "4.2.5.3 Pragma directives"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "Content security policy state"; previous heading contents are "4.2.5.3 Pragma directives"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ping"; previous heading contents are "4.5.1 The a element"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "alternate"; previous heading contents are "4.6.6.1 Link type "alternate""
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "preload"; previous heading contents are "4.6.6.19 Link type "preload""
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "srcdoc"; previous heading contents are "4.8.5 The   iframe element"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "src"; previous heading contents are "4.12.1 The script element"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "integrity"; previous heading contents are "4.12.1 The script element"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing ""parser-inserted""; previous heading contents are "4.12.1.1 Processing model"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "[CEReactions]"; previous heading contents are "4.13.6 Custom element reactions"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "Window"; previous heading contents are "7.3 The Window object"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "open(url,   target, features)"; previous heading contents are "7.3.1 APIs for creating and navigating browsing contexts by name"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "WindowProxy"; previous heading contents are "7.4 The WindowProxy exotic object"
Error: Element found with dfn type name and redundant export attribute; dfn is <h5> element containing "Processing model"; previous heading contents are "Processing model"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "DOM manipulation task source"; previous heading contents are "8.1.6.4 Generic task sources"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onabort"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onauxclick"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "oncancel"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "oncanplay"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "oncanplaythrough"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onchange"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onclick"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onclose"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "oncontextmenu"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "oncuechange"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondblclick"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondrag"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondragend"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondragenter"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondragleave"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondragover"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondragstart"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondrop"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondurationchange"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onemptied"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onended"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onformdata"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "oninput"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "oninvalid"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onkeydown"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onkeypress"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onkeyup"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onloadeddata"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onloadedmetadata"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onloadstart"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onmousedown"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onmouseenter"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onmouseleave"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onmousemove"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onmouseout"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onmouseover"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onmouseup"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onpause"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onplay"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onplaying"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onprogress"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onratechange"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onreset"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onsecuritypolicyviolation"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onseeked"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onseeking"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onselect"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onslotchange"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onstalled"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onsubmit"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onsuspend"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ontimeupdate"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ontoggle"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onvolumechange"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onwaiting"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onwebkitanimationend"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onwebkitanimationiteration"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onwebkitanimationstart"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onwebkittransitionend"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onwheel"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onreadystatechange"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <h2> element containing "Web workers"; previous heading contents are "Web workers"
Error: Element found with dfn type name and redundant export attribute; dfn is <h5> element containing "Shared workers"; previous heading contents are "Shared workers"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "closing"; previous heading contents are "10.2.2 The event loop"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "frameset"; previous heading contents are "15.3.2 Frames"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "frame"; previous heading contents are "15.3.2 Frames"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "Cross-Origin-Embedder-Policy"; previous heading contents are "16.8 `Cross-Origin-Embedder-Policy`"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "Cross-Origin-Embedder-Policy-Report-Only"; previous heading contents are "16.9 `Cross-Origin-Embedder-Policy-Report-Only`"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "abort"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "DOMContentLoaded"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "afterprint"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "beforeprint"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "beforeunload"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "blur"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "cancel"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "change"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "close"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "connect"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "contextmenu"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "copy"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "cut"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "error"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "focus"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "formdata"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "hashchange"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "input"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "invalid"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "languagechange"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "load"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "message"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "messageerror"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "offline"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "online"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "open"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "pagehide"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "pageshow"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "paste"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "popstate"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "readystatechange"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "rejectionhandled"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "reset"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "securitypolicyviolation"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "select"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "slotchange"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "storage"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "submit"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "toggle"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "unhandledrejection"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "unload"; previous heading contents are "Events"
Error: missing <dfn> for topic "concept-is-declarative-shadow-root" explicitly from <span> element containing "is declarative shadow root"; previous heading contents are "4.13.7 The ElementInternals interface"
Error count: 139
Saving index-html
Splitting...
Saving index.html
Saving introduction.html
Saving infrastructure.html
Saving common-microsyntaxes.html
Saving urls-and-fetching.html
Saving common-dom-interfaces.html
Saving structured-data.html
Saving dom.html
Saving semantics.html
Saving sections.html
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Saving text-level-semantics.html
Saving links.html
Saving edits.html
Saving embedded-content.html
Saving images.html
Saving iframe-embed-object.html
Saving media.html
Saving image-maps.html
Saving embedded-content-other.html
Saving tables.html
Saving forms.html
Saving input.html
Saving form-elements.html
Saving form-control-infrastructure.html
Saving interactive-elements.html
Saving scripting.html
Saving canvas.html
Saving custom-elements.html
Saving semantics-other.html
Saving microdata.html
Saving interaction.html
Saving dnd.html
Saving browsers.html
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Saving origin.html
Saving history.html
Saving browsing-the-web.html
Saving offline.html
Saving webappapis.html
Saving dynamic-markup-insertion.html
Saving timers-and-user-prompts.html
Saving system-state.html
Saving imagebitmap-and-animations.html
Saving comms.html
Saving server-sent-events.html
Saving web-sockets.html
Saving web-messaging.html
Saving workers.html
Saving webstorage.html
Saving syntax.html
Saving parsing.html
Saving named-characters.html
Saving xhtml.html
Saving rendering.html
Saving obsolete.html
Saving iana.html
Saving indices.html
Saving references.html
Saving acknowledgements.html
Generating DEV variant...
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "nonce"; previous heading contents are "2.5.4 Nonce attributes"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "[[CryptographicNonce]]"; previous heading contents are "2.5.4 Nonce attributes"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "nonce"; previous heading contents are "2.5.4 Nonce attributes"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "integrity"; previous heading contents are "4.2.4 The link element"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "content"; previous heading contents are "4.2.5 The meta element"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "http-equiv"; previous heading contents are "4.2.5.3 Pragma directives"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "Content security policy state"; previous heading contents are "4.2.5.3 Pragma directives"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "alternate"; previous heading contents are "4.6.5.1 Link type "alternate""
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "preload"; previous heading contents are "4.6.5.19 Link type "preload""
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "srcdoc"; previous heading contents are "4.8.5 The   iframe element"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "src"; previous heading contents are "4.12.1 The script element"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "integrity"; previous heading contents are "4.12.1 The script element"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "Window"; previous heading contents are "7.2 The Window object"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onabort"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onauxclick"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "oncancel"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "oncanplay"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "oncanplaythrough"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onchange"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onclick"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onclose"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "oncontextmenu"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "oncuechange"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondblclick"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondrag"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondragend"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondragenter"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondragleave"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondragover"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondragstart"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondrop"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondurationchange"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onemptied"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onended"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onformdata"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "oninput"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "oninvalid"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onkeydown"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onkeypress"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onkeyup"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onloadeddata"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onloadedmetadata"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onloadstart"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onmousedown"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onmouseenter"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onmouseleave"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onmousemove"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onmouseout"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onmouseover"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onmouseup"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onpause"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onplay"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onplaying"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onprogress"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onratechange"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onreset"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onsecuritypolicyviolation"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onseeked"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onseeking"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onselect"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onslotchange"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onstalled"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onsubmit"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onsuspend"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ontimeupdate"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ontoggle"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onvolumechange"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onwaiting"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onwebkitanimationend"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onwebkitanimationiteration"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onwebkitanimationstart"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onwebkittransitionend"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onwheel"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onreadystatechange"; previous heading contents are "8.1.5.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <h2> element containing "Web workers"; previous heading contents are "Web workers"
Error: Element found with dfn type name and redundant export attribute; dfn is <h5> element containing "Shared workers"; previous heading contents are "Shared workers"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "closing"; previous heading contents are "10.2.2 The event loop"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "abort"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "DOMContentLoaded"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "afterprint"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "beforeprint"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "beforeunload"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "blur"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "cancel"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "change"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "close"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "connect"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "contextmenu"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "copy"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "cut"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "error"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "focus"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "formdata"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "hashchange"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "input"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "invalid"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "languagechange"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "load"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "message"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "messageerror"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "offline"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "online"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "open"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "pagehide"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "pageshow"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "paste"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "popstate"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "readystatechange"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "rejectionhandled"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "reset"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "securitypolicyviolation"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "select"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "slotchange"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "storage"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "submit"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "toggle"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "unhandledrejection"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "unload"; previous heading contents are "Events"
Error count: 118
Splitting...
Saving index.html
Saving introduction.html
Saving infrastructure.html
Saving common-microsyntaxes.html
Saving urls-and-fetching.html
Saving common-dom-interfaces.html
Saving dom.html
Saving semantics.html
Saving sections.html
Saving grouping-content.html
Saving text-level-semantics.html
Saving links.html
Saving edits.html
Saving embedded-content.html
Saving images.html
Saving iframe-embed-object.html
Saving media.html
Saving image-maps.html
Saving embedded-content-other.html
Saving tables.html
Saving forms.html
Saving input.html
Saving form-elements.html
Saving form-control-infrastructure.html
Saving interactive-elements.html
Saving scripting.html
Saving canvas.html
Saving custom-elements.html
Saving semantics-other.html
Saving microdata.html
Saving interaction.html
Saving dnd.html
Saving browsers.html
Saving window-object.html
Saving origin.html
Saving history.html
Saving browsing-the-web.html
Saving offline.html
Saving webappapis.html
Saving dynamic-markup-insertion.html
Saving timers-and-user-prompts.html
Saving system-state.html
Saving imagebitmap-and-animations.html
Saving comms.html
Saving server-sent-events.html
Saving web-sockets.html
Saving web-messaging.html
Saving workers.html
Saving webstorage.html
Saving syntax.html
Saving named-characters.html
Saving xhtml.html
Saving obsolete.html
Saving indices.html
Saving references.html
Saving acknowledgements.html
Generating SNAP variant...
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "nonce"; previous heading contents are "2.6.6 Nonce attributes"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "[[CryptographicNonce]]"; previous heading contents are "2.6.6 Nonce attributes"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "nonce"; previous heading contents are "2.6.6 Nonce attributes"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "[Serializable]"; previous heading contents are "2.8.1 Serializable objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "[Transferable]"; previous heading contents are "2.8.2 Transferable objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "[[Detached]]"; previous heading contents are "2.8.2 Transferable objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <h4> element containing "StructuredSerialize ( value )"; previous heading contents are "StructuredSerialize ( value )"
Error: Element found with dfn type name and redundant export attribute; dfn is <h4> element containing "StructuredSerializeForStorage ( value )"; previous heading contents are "StructuredSerializeForStorage ( value )"
Error: Element found with dfn type name and redundant export attribute; dfn is <h4> element containing "StructuredDeserialize ( serialized,   targetRealm [ , memory ] )"; previous heading contents are "StructuredDeserialize ( serialized,   targetRealm [ , memory ] )"
Error: Element found with dfn type name and redundant export attribute; dfn is <h4> element containing "StructuredSerializeWithTransfer ( value,   transferList )"; previous heading contents are "StructuredSerializeWithTransfer ( value,   transferList )"
Error: Element found with dfn type name and redundant export attribute; dfn is <h4> element containing "StructuredDeserializeWithTransfer (   serializeWithTransferResult, targetRealm )"; previous heading contents are "StructuredDeserializeWithTransfer (   serializeWithTransferResult, targetRealm )"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "[HTMLConstructor]"; previous heading contents are "3.2.3 HTML element constructors"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "integrity"; previous heading contents are "4.2.4 The link element"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "content"; previous heading contents are "4.2.5 The meta element"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "http-equiv"; previous heading contents are "4.2.5.3 Pragma directives"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "Content security policy state"; previous heading contents are "4.2.5.3 Pragma directives"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ping"; previous heading contents are "4.5.1 The a element"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "alternate"; previous heading contents are "4.6.6.1 Link type "alternate""
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "preload"; previous heading contents are "4.6.6.19 Link type "preload""
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "srcdoc"; previous heading contents are "4.8.5 The   iframe element"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "src"; previous heading contents are "4.12.1 The script element"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "integrity"; previous heading contents are "4.12.1 The script element"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing ""parser-inserted""; previous heading contents are "4.12.1.1 Processing model"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "[CEReactions]"; previous heading contents are "4.13.6 Custom element reactions"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "Window"; previous heading contents are "7.3 The Window object"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "open(url,   target, features)"; previous heading contents are "7.3.1 APIs for creating and navigating browsing contexts by name"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "WindowProxy"; previous heading contents are "7.4 The WindowProxy exotic object"
Error: Element found with dfn type name and redundant export attribute; dfn is <h5> element containing "Processing model"; previous heading contents are "Processing model"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "DOM manipulation task source"; previous heading contents are "8.1.6.4 Generic task sources"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onabort"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onauxclick"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "oncancel"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "oncanplay"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "oncanplaythrough"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onchange"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onclick"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onclose"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "oncontextmenu"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "oncuechange"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondblclick"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondrag"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondragend"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondragenter"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondragleave"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondragover"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondragstart"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondrop"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ondurationchange"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onemptied"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onended"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onformdata"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "oninput"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "oninvalid"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onkeydown"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onkeypress"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onkeyup"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onloadeddata"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onloadedmetadata"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onloadstart"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onmousedown"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onmouseenter"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onmouseleave"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onmousemove"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onmouseout"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onmouseover"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onmouseup"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onpause"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onplay"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onplaying"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onprogress"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onratechange"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onreset"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onsecuritypolicyviolation"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onseeked"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onseeking"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onselect"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onslotchange"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onstalled"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onsubmit"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onsuspend"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ontimeupdate"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "ontoggle"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onvolumechange"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onwaiting"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onwebkitanimationend"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onwebkitanimationiteration"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onwebkitanimationstart"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onwebkittransitionend"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onwheel"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "onreadystatechange"; previous heading contents are "8.1.7.2 Event handlers on elements, Document objects, and Window objects"
Error: Element found with dfn type name and redundant export attribute; dfn is <h2> element containing "Web workers"; previous heading contents are "Web workers"
Error: Element found with dfn type name and redundant export attribute; dfn is <h5> element containing "Shared workers"; previous heading contents are "Shared workers"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "closing"; previous heading contents are "10.2.2 The event loop"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "frameset"; previous heading contents are "15.3.2 Frames"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "frame"; previous heading contents are "15.3.2 Frames"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "Cross-Origin-Embedder-Policy"; previous heading contents are "16.8 `Cross-Origin-Embedder-Policy`"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "Cross-Origin-Embedder-Policy-Report-Only"; previous heading contents are "16.9 `Cross-Origin-Embedder-Policy-Report-Only`"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "abort"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "DOMContentLoaded"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "afterprint"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "beforeprint"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "beforeunload"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "blur"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "cancel"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "change"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "close"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "connect"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "contextmenu"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "copy"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "cut"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "error"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "focus"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "formdata"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "hashchange"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "input"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "invalid"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "languagechange"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "load"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "message"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "messageerror"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "offline"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "online"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "open"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "pagehide"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "pageshow"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "paste"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "popstate"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "readystatechange"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "rejectionhandled"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "reset"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "securitypolicyviolation"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "select"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "slotchange"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "storage"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "submit"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "toggle"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "unhandledrejection"; previous heading contents are "Events"
Error: Element found with dfn type name and redundant export attribute; dfn is <dfn> element containing "unload"; previous heading contents are "Events"
Error: missing <dfn> for topic "concept-is-declarative-shadow-root" explicitly from <span> element containing "is declarative shadow root"; previous heading contents are "4.13.7 The ElementInternals interface"
Error count: 139
Saving index-snap

If you don't have enough information above to solve the error by yourself (or to understand to which web service the error is related to, if any), please file an issue.

[rniwa]

Can we merge this PR with #5912? That way, we can review the whole thing in one go.

[mfreed7]

Can we merge this PR with #5912? That way, we can review the whole thing in one go.

Sure - done. I'll close this one now.