NotImplementedException inside CSSRuleList.item()

[DartBot]

This issue was originally filed by [email protected]

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What steps will reproduce the problem?

1. Unzip the attached zip
2. Download go_appengine_sdk_linux_386-go1beta4.zip from http://code.google.com/p/appengine-go/downloads/list
3. unzip go_appengine_sdk_linux_386-go1beta4.zip and add the unzipped directory (google_appengine) to PATH
4. execute "dev_appserver.py dartium-server" and start a local server
5. Access http://localhost:8080/ in Dartium

What is the expected output? What do you see instead?
I expected to see some sort of printed text inside the developer console, but instead got the following NotImplementedException.

Exception: NotImplementedException
Stack Trace: 0. Function: 'CSSRuleListImplementation._item@1c3f8015' url: '/mnt/data/b/build/slave/dartium-lucid64-inc/build/src/out/Release/obj/gen/webkit/bindings/dart/dart/CSSRuleListImplementation.dart' line:20 col:1
 1. Function: 'CSSRuleListImplementation.item' url: '/mnt/data/b/build/slave/dartium-lucid64-inc/build/src/out/Release/obj/gen/webkit/bindings/dart/dart/CSSRuleListImplementation.dart' line:15 col:17
 2. Function: '[email protected]' url: 'dart:html' line:1785 col:27
 3. Function: '::main' url: 'http://localhost:8080/' line:11 col:47

In Dartium, enter chrome://version and paste the results here.
Chromium 19.0.1072.0 (Developer Build 127158)
OS Linux
WebKit 536.3 (Source/WebCore/Configurations@285)
JavaScript V8 3.9.19
DartVM r5681
Flash 11.1 r102
ユーザー エージェント Mozilla/5.0 (X11; Linux i686) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1072.0 (Dart) Safari/536.3
コマンドライン ./chrome --flag-switches-begin --flag-switches-end
実行可​​能なパス /home/masato/ダウンロード/dartium-lucid64-inc-5681.5681/chrome
プロフィール パス /home/masato/.config/chromium/Default

Put OS and machine details here.
(If you're using Linux or Mac OS, you can get this from uname -a.)
$ uname -a
Linux masato-xubuntu 3.0.0-16-generic-pae #­29-Ubuntu SMP Tue Feb 14 13:56:31 UTC 2012 i686 i686 i386 GNU/Linux

Please provide any additional information below.
You'll get the following NullPointerException if you try to open index.html locally in Dartium.

Exception: NullPointerException
Stack Trace: 0. Function: 'Object.noSuchMethod' url: 'bootstrap' line:677 col:3
 1. Function: '::main' url: 'file:///home/masato/desk/programs/google-app-engine/dartium-server/index.html' line:9 col:58

The reason is because CSSStyleSheet.cssRules becomes null if you read html from the file system.
This seems to be a different bug in chrome itself.

Regression: cssRules null when stylesheets loaded from local disk
http://code.google.com/p/chromium/issues/detail?id=49001

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Attachment:
ErrorSample.zip (14.43 KB)

[DartBot]

This comment was originally written by [email protected]

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Set owner to [email protected].
Added Accepted label.

[DartBot]

This comment was originally written by [email protected]

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Should be fixed now

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Added Fixed label.