Google Chart Library conflicts in the main WP dashboard widget

[jamesozzie]

Bug Description

Now that we load a mini dashboard that displays active users (within the main WordPress dashboard - #631) there are reports of conflicts with other plugins that also load such dashboard widgets. One example error is below:
Cannot read properties of undefined (reading 'Pe') | Support topic

hojWAaEn2n.mp4

Console errors

googlesitekit-wp-das…e602e2ccfa589.js:15 Caught an error: TypeError: Cannot read properties of undefined (reading 'Pe')
    at gvjs_Tn (jsapi_compiled_default_module.js:436:108)
    at gvjs_Q.gvjs_Sn (jsapi_compiled_default_module.js:435:185)
    at new gvjs_Q (jsapi_compiled_default_module.js:504:305)
    at GoogleChart.componentDidMount (googlesitekit-vendor…adccb98.js:7:294760)
    at ya (googlesitekit-vendor…adccb98.js:7:729533)
    at t.unstable_runWithPriority (googlesitekit-vendor…adccb98.js:7:749082)
    at Mr (googlesitekit-vendor…adccb98.js:7:674188)
    at Yj (googlesitekit-vendor…adccb98.js:7:725888)
    at Lj (googlesitekit-vendor…adccb98.js:7:716248)
    at googlesitekit-vendor…adccb98.js:7:674479 
{componentStack: '\n    in GoogleChart\n    in ContextProvider\n    in …   in ThemeProvider\n    in StrictMode\n    in Root'}
componentStack
: 
"\n    in GoogleChart\n    in ContextProvider\n    in Chart\n    in div\n    in GoogleChart\n    in div\n    in WPDashboardUniqueVisitorsChartWidget\n    in div\n    in WPDashboardWidgets\n    in div\n    in WPDashboardApp\n    in RestoreSnapshots\n    in ErrorHandler\n    in ThemeProvider\n    in StrictMode\n    in Root"
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ƒ Object()
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ƒ hasOwnProperty()
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propertyIsEnumerable
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ƒ propertyIsEnumerable()
toLocaleString
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toString
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valueOf
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ƒ valueOf()
__defineGetter__
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__defineSetter__
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__lookupGetter__
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This is likely as we load Google Chart library scripts on the main WP dashboard. While other users reported the same or similar errors, these users are using different plugins. In my case I encountered it with the Analytics Insights for Google Analytics 4 (AIWP) plugin, with the steps to recreate below:

Steps to reproduce

1. Setup a site with SK active (Analytics set up)
2. Install and set up the Analytics Insights plugin (so that a WordPress main dashboard widget appears from this plugin)
3. Visit the main WP dashboard. The error as per the screenshot (and recording) above appears

A potential workaround while we're working on this, could be to disable the the main WP dashboard if possible. I don't see a filter for this at present. Otherwise, if users who encounter this error, can view their Analytics data from the main Site Kit dashboard.

Additional information

• There is an open GH issue to handle Google Chart Library script conflicts: Improve error handling in Google charts to avoid crashing the dashboard #6346
• This only occurs since we added the unique visitors dashboard to the main WP dashboard widget (WP dashboard widget show daily uniques #631)
• Various users reported similar conflicts since this addition was released (WP dashboard widget show daily uniques #631), using different Analytics plugins. The errors output are not always the same. Testing ongoing

Impacted users / Support topics & possible other errors output (all since SK version 1.90.0 was shipped)

Cannot read properties of null (reading '0')

• https://wordpress.org/support/topic/cannot-read-properties-of-null-reading-0-3/ | Open | SH info |

Cannot read properties of undefined (reading ‘Pe’)

• https://wordpress.org/support/topic/sitekit-functioning-but-error-in-wp-dashboard/ | Open | SH info |
• https://wordpress.org/support/topic/site-kit-encountered-an-error-92/ | Open | SH info |
• https://wordpress.org/support/topic/error-message-wordpress-dashboard/ | Open | SH info | GA4WP
• https://wordpress.org/support/topic/site-kit-encountered-an-error-93 | Open | SH info | GA4WP

`gvjs_cq. Call is not a function

• https://wordpress.org/support/topic/another-wp-console-site-kit-error/ | Open | SH info |

Others

• https://wordpress.org/support/topic/summary-code-error-conflict-with-anti-spam-by-cleantalk/ | Open | SH info | CleanTalk
• https://wordpress.org/support/topic/site-kit-encountered-an-error-91/ | This one I suspect isn't related, however other users jumped on reporting the same.

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Acceptance criteria

• The chart for "Unique visitors over the last 28 days" in Site Kit's summary widget on the WP dashboard (WP dashboard widget show daily uniques #631) should be removed
  Note: this is temporary and will be restored in a near-future release.
  • Only the chart's presence in the summary widget should be removed; the component itself should remain

Implementation Brief

• Remove the rendered WPDashboardUniqueVisitorsChartWidget from WPDashboardWidgets

Test Coverage

• No changes should be needed, except perhaps VRT reference images

QA Brief

• This issue addresses a conflict on the WP dashboard involving other plugins which also load Google charts
• The Site Kit Summary WP dashboard widget should continue to load and display as normal with plugins that currently conflict with the 1.90.0 version

Changelog entry

• Fix a compatibility issue by temporarily removing the "Unique visitors over the last 28 days" chart from the "Site Kit Summary" WordPress dashboard widget.

[felixarntz]

@aaemnnosttv Do we already have a follow up issue to restore the widget? So that it doesn't get lost. What should be our prerequisites before restoring it?

[aaemnnosttv]

@felixarntz we do not have that yet, I can open that now. I was thinking #6346 would be sufficient for doing that. What do you think?

[wpdarren]

QA Update: ✅

• The Site Kit Summary WP dashboard widget continues to load and display as normal with plugins that currently conflict with the 1.90.0 version, i.e. Analytics Insights for Google Analytics 4 (AIWP) plugin.
• The graph no longer appears which is expected as we have temporarily removed this.
• No errors appear in the console or Site Kit widget on the WP dashboard, that is related to Site Kit.
• Had a quick look at the charts on the main and entity dashboard and they load fine but will complete regression testing before releasing 1.90.1 hotfix.

Screenshots