Bug 148230

Summary: Web Inspector: console assertion when populating script content for call frame before source map resource loads
Product: WebKit Reporter: BJ Burg <bburg>
Component: Web InspectorAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: graouts, inspector-bugzilla-changes, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: All   
OS: All   
URL: http://www.disney.com
Attachments:
Description Flags
Screenshot of assertion in Inspector^2 none

Description BJ Burg 2015-08-20 10:08:39 PDT
Created attachment 259476 [details]
Screenshot of assertion in Inspector^2

I was not able to reproduce this reliably, but I did get a screenshot with some relevant state.

It appears that in some cases, we may try to show a script resource (load triggered via SourceMap) in a call frame before that script has been loaded from the backend.

I don't really understand what SourceCodeTextEditor can assume in _populateWithScriptContent(). In my understanding, a script will not be associated with a resource until the DebuggerManager receives the parser notification (scriptDidParse) and makes a new WebInspector.Script. But in this case, it has nothing, and this is a normal call frame whose resource has a source map.

Joe, does anything stand out to you? The call stack may provide some extra clues. Unfortunately I didn't save the Inspector's debugger call frames it was trying to show.
Comment 1 Radar WebKit Bug Importer 2015-08-20 10:09:17 PDT
<rdar://problem/22363055>