https://bugzilla.wikimedia.org/show_bug.cgi?id=58262
Web browser: ---
Bug ID: 58262
Summary: Flow: JavaScript error trying to highlight URL
fragment
Product: MediaWiki extensions
Version: master
Hardware: All
URL: http://ee-flow.wmflabs.org/wiki/Talk:First_release#bad
OS: All
Status: NEW
Severity: normal
Priority: Unprioritized
Component: Flow
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected]
Classification: Unclassified
Mobile Platform: ---
ui.js tries to highlight whatever's in the URL fragment:
highlightPost( $( '.flow-post' + window.location.hash ) );
without any validation that the selector $( '.flow-postXXX' ) exists, so if the
fragment isn't loaded yet, or is just random #stuff, the JavaScript code
$elem.offset().top fails. Thereafter page JavaScript like collapse/expand icons
don't work.
With ?debug=1, the console shows (Firefox):
[00:07:02.739] TypeError: $elem.offset(...) is undefined @
http://ee-flow.wmflabs.org/w/extensions/Flow/modules/discussion/ui.js:324
or (Chromium):
Uncaught TypeError: Cannot read property 'top' of undefined
We'll need smarter fragment parsing sooner or later.
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