Bug 194280 - Web Inspector: Uncaught Exception: undefined is not an object (evaluating 'classes.includes')
Summary: Web Inspector: Uncaught Exception: undefined is not an object (evaluating 'cl...
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: Web Inspector (show other bugs)
Version: WebKit Nightly Build
Hardware: All All
: P2 Normal
Assignee: Devin Rousso
URL: file:///Volumes/DATA/Build/Release/We...
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2019-02-04 23:11 PST by Devin Rousso
Modified: 2019-02-04 23:48 PST (History)
5 users (show)

See Also:

Attachments
Patch (1.91 KB, patch)
2019-02-04 23:13 PST, Devin Rousso 		no flags Details | Formatted Diff | Diff
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Devin Rousso 2019-02-04 23:11:19 PST 
-------
Inspected URL:        file:///Volumes/DATA/Build/Release/WebInspectorUI.framework/Resources/Main.html
Loading completed:    true
Frontend User Agent:  Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_4) AppleWebKit/605.1.15 (KHTML, like Gecko)
Dispatch Source:      Protocol Event

Protocol Event:
{"method":"DOM.attributeRemoved","params":{"nodeId":342,"name":"class"}}

Uncaught Exceptions:
 - undefined is not an object (evaluating 'classes.includes') (at GeneralStyleDetailsSidebarPanel.js:373:37)
    _populateClassToggles @ GeneralStyleDetailsSidebarPanel.js:373:37
    _handleNodeAttributeRemoved @ GeneralStyleDetailsSidebarPanel.js:309:39
    dispatch @ Object.js:165:30
    dispatchEventToListeners @ Object.js:172:17
    _attributeRemoved @ DOMManager.js:225:38
    attributeRemoved @ DOMObserver.js:52:40
    dispatchEvent @ InspectorBackend.js:340:42
    _dispatchEvent @ Connection.js:195:32
    dispatch @ Connection.js:72:32
    dispatchMessageFromTarget @ TargetManager.js:101:35
    dispatchMessageFromTarget @ TargetObserver.js:42:51
    dispatchEvent @ InspectorBackend.js:340:42
    _dispatchEvent @ Connection.js:195:32
    dispatch @ Connection.js:72:32
    dispatch @ InspectorBackend.js:178:52
    dispatchNextQueuedMessageFromBackend @ MessageDispatcher.js:42:34

Additional Details:
    cause --> An uncaught exception was thrown while handling event: DOM.attributeRemoved
-------

* STEPS TO REPRODUCE
1. open inspector2
2. right click on the "class" attribute of <body> in the DOM tree
3. select Delete > Attribute
Comment 1 Radar WebKit Bug Importer 2019-02-04 23:11:57 PST 
<rdar://problem/47811159>
Comment 2 Devin Rousso 2019-02-04 23:13:57 PST 
Created attachment 361162 [details]
Patch
Comment 3 Matt Baker 2019-02-04 23:23:25 PST 
Comment on attachment 361162 [details]
Patch

rs=me
Comment 4 WebKit Commit Bot 2019-02-04 23:48:16 PST 
Comment on attachment 361162 [details]
Patch

Clearing flags on attachment: 361162

Committed r240967: <https://trac.webkit.org/changeset/240967>
Comment 5 WebKit Commit Bot 2019-02-04 23:48:17 PST 
All reviewed patches have been landed.  Closing bug.