Bug 7543

Summary:

Computed style object presents duplicate properties when using "for..in"

Product:

WebKit

Reporter:

Peter Flynn <ytpete>

Component:

CSS

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED DUPLICATE

Severity:

Normal

CC:

ap, ian

Priority:

Version:

417.x

Hardware:

Mac

OS:

OS X 10.4

Attachments:

Description	Flags
Testcase	none

Peter Flynn

Reported 2006-03-01 18:27:28 PST

1. Open testcase 2. Click the button to list all the properties of a computedStyle object 3. Click the button again Expected result: The list is the same in both cases Actual result: The second time, the list contains several duplicated items. This should NEVER happen when iterating the keys of a JavaScript object using "for ... in". The duplicated items are: getPropertyValue, getPropertyCSSValue, removeProperty, getPropertyPriority, setProperty, item Clicking additional times gives the same results as the 2nd click. No further duplicates are added.

Attachments
Testcase (437 bytes, text/html) 2006-03-01 18:28 PST, Peter Flynn	no flags	Details
View All Add attachment proposed patch, testcase, etc.

Peter Flynn

Comment 1 2006-03-01 18:28:18 PST

Created attachment 6798 [details] Testcase

Alexey Proskuryakov

Comment 2 2006-05-02 06:12:40 PDT

See also: bug 6639 (duplicate?).

Peter Flynn

Comment 3 2006-05-02 10:02:52 PDT

(In reply to comment #2) However, the problem here does not occur the very first time the properties are enumerated. Could it be that process drops some new copies of the properties in question into the prototype chain? If so, then this would be a dupe...

Alexey Proskuryakov

Comment 4 2006-07-16 21:44:46 PDT

*** This bug has been marked as a duplicate of 9950 ***

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