Bug 177587 - Uncaught Exception: Attempted to assign to readonly property (at ContentView.js:​206:​34)​
Summary: Uncaught Exception: Attempted to assign to readonly property (at ContentView....
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: Joseph Pecoraro
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2017-09-27 20:05 PDT by Joseph Pecoraro
Modified: 2017-09-27 21:21 PDT (History)
5 users (show)

See Also:

Attachments
[PATCH] Proposed Fix (2.77 KB, patch)
2017-09-27 20:08 PDT, Joseph Pecoraro 		no flags Details | Formatted Diff | Diff
View All Add an attachment (proposed patch, testcase, etc.)

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Description Joseph Pecoraro 2017-09-27 20:05:14 PDT 
Uncaught Exception: Attempted to assign to readonly property (at ContentView.js:​206:​34)​

Backtrace:
Attempted to assign to readonly property. (at ContentView.js:​206:​34)​
    closedContentViewForRepresentedObject @ ContentView.js:​206:​34
    _disassociateFromContentView @ ContentViewContainer.js:​432:​65
    closeAllContentViews @ ContentViewContainer.js:​291:​46
    closed @ ClusterContentView.js:​82:​56
    closed @ ResourceClusterContentView.js:​146:​21
    _disassociateFromContentView @ ContentViewContainer.js:​429:​27
    closeAllContentViews @ ContentViewContainer.js:​291:​46
    dispose @ NetworkResourceDetailView.js:​71:​71
    reset @ NetworkTableContentView.js:​183:​31
    _mainResourceDidChange @ NetworkTableContentView.js:​698:​19
    ...

It when we close any ContentView with Post Data we can get this exception since the representedObject is a string, and you can't do:

   str[prop] = value;

in strict mode on a string... it throws this exception.
Comment 1 Joseph Pecoraro 2017-09-27 20:08:03 PDT 
Created attachment 322059 [details]
[PATCH] Proposed Fix
Comment 2 Matt Baker 2017-09-27 20:34:40 PDT 
Comment on attachment 322059 [details]
[PATCH] Proposed Fix

r=me
Comment 3 WebKit Commit Bot 2017-09-27 21:20:08 PDT 
Comment on attachment 322059 [details]
[PATCH] Proposed Fix

Clearing flags on attachment: 322059

Committed r222599: <http://trac.webkit.org/changeset/222599>
Comment 4 WebKit Commit Bot 2017-09-27 21:20:10 PDT 
All reviewed patches have been landed.  Closing bug.
Comment 5 Radar WebKit Bug Importer 2017-09-27 21:21:17 PDT 
<rdar://problem/34706004>