86741 2012-05-17 08:38:55 -0700 Web Inspector: error when expanding an HTMLAllCollection object in the console 2012-05-18 08:56:48 -0700 1 1 1 Unclassified WebKit Web Inspector (Deprecated) 528+ (Nightly build) All All RESOLVED FIXED P2 Normal --- 0 yurys yurys apavlov bweinstein joepeck keishi loislo pfeldman pmuellr rik timothy yurys oldest_to_newest 626605 0 yurys 2012-05-17 08:38:55 -0700 Chrome Version : 20.0.1132.3 and 21.0.1139.0 What steps will reproduce the problem? 1. Goto http://www.google.ru/ 2. Open DevTools console 3. Write "document.all" and expand the HTMLAllCollection object result What is the expected result? To see the properties of the object. What happens instead? JS error with the following stack trace: Uncaught TypeError: Cannot read property 'length' of null ObjectPropertiesSection.js:565 - callback ObjectPropertiesSection.js:565 - mycallback RemoteObject.js:307 - InspectorBackendClass.dispatch InspectorBackend.js:186 Please provide any additional information below. Attach a screenshot if possible. UserAgentString: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.3 Safari/536.11 Original bug report: http://code.google.com/p/chromium/issues/detail?id=128533 626617 1 142482 yurys 2012-05-17 08:54:36 -0700 Created attachment 142482 Patch 626620 2 yurys 2012-05-17 08:59:54 -0700 Committed r117454: <http://trac.webkit.org/changeset/117454> 627537 3 142482 aandrey 2012-05-18 03:23:13 -0700 Comment on attachment 142482 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=142482&action=review > Source/WebCore/inspector/InjectedScriptSource.js:274 > + if (!this._isDefined(object)) Should we also modify the code below in the same way: 287 var resolvedArg = this._objectForId(parsedArgId); 288 if (!resolvedArg) 289 return "Could not find object with given id"; ? Otherwise, although this does fix the original problem, but for example setting a property to a document.all still is not working. Scenario to repro this in DevTools: 1) type in console "var a = {foo:123}; a;" 2) expand the result, double click on "123", and write "document.all" 3) observe the live edit getting ignored (unlike, for example, "document.all[0]") - I guess this is because of line 288 as I pointed out 627731 4 yurys 2012-05-18 08:54:00 -0700 Reopening to attach new patch. 627732 5 142725 yurys 2012-05-18 08:54:07 -0700 Created attachment 142725 Patch 627733 6 yurys 2012-05-18 08:55:08 -0700 (In reply to comment #5) > Created an attachment (id=142725) [details] > Patch This patch addresses the problem pointed out by Andrey. 627735 7 yurys 2012-05-18 08:56:48 -0700 Committed r117599: <http://trac.webkit.org/changeset/117599> 142482 2012-05-17 08:54:36 -0700 2012-05-18 08:53:45 -0700 Patch bug-86741-20120517195435.patch text/plain 4361 yurys U3VidmVyc2lvbiBSZXZpc2lvbjogMTE3NDQ3CmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViQ29yZS9D aGFuZ2VMb2cgYi9Tb3VyY2UvV2ViQ29yZS9DaGFuZ2VMb2cKaW5kZXggY2ZjM2Q4ZDk5NDgwZGYz 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