Bug 125018

Summary:

Web Inspector: TypeError when reloading page with Debugger sidebar panel open

Product:

WebKit

Reporter:

Brian Burg <burg>

Component:

Web Inspector

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

joepeck, timothy, webkit-bug-importer

Priority:

Keywords:

InRadar

Version:

528+ (Nightly build)

Hardware:

All

OS:

All

Attachments:

Description	Flags
stack trace	none

Brian Burg

Reported 2013-11-29 11:08:11 PST

Repro steps: 1. Go to http://www.nihilogic.dk/labs/tetris/ 2. Open resources sidebar, create a few breakpoints in tetris.js 3. Open timelines sidebar 4. Open debugger sidebar, select a breakpoint 5. Reload with Cmd+R a few times Occasionally, there will be this error: ResourceSidebarPanel.js:214: JS ERROR: TypeError: null is not an object (evaluating 'representedObject.parentFrame.mainResource') ResourceSidebarPanel.js:252: CONSOLEAPI ERROR: Didn't find a TreeElement for a representedObject associated with the ResourceSidebarPanel. The resource in question is a Resource instance for tetris.js. It seems that it may be loading in some unexpected order wrt. the main resource. Attached is a stack trace. The bug seems independent of restore strategy; I found it when rewriting restore on reopen/reload, but it reproduces in trunk as well.

Attachments
stack trace (132.71 KB, image/png) 2013-11-29 11:13 PST, Brian Burg	no flags	Details
View All Add attachment proposed patch, testcase, etc.

Brian Burg

Comment 1 2013-11-29 11:13:43 PST

Created attachment 218075 [details] stack trace

Radar WebKit Bug Importer

Comment 2 2014-02-14 09:51:43 PST

<rdar://problem/16070874>

Timothy Hatcher

Comment 3 2014-02-14 11:59:09 PST

I fixed this a couple weeks ago. https://trac.webkit.org/changeset/162413/trunk/Source/WebInspectorUI/UserInterface/ResourceSidebarPanel.js

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