Created attachment 783858 [details] index.html User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.63 Safari/537.31 Steps to reproduce: We used a project named Jasper to create a small contest but it appeared to be impossible for Firefox users to play with it. The user had to create a String object, pass it to a function declared in the window scope who test if the object was inheriting from String (obj instanceof String). Actual results: The function in the window scope does not recognize that the object has been build with the String constructor. Expected results: The function should recognize the object a a string. I suggest you to give a quick look to the attached file to better understand.
Works for Me in Firefox23b10 http://hg.mozilla.org/releases/mozilla-beta/rev/0e3cb8907fef Mozilla/5.0 (Windows NT 6.1; WOW64; rv:23.0) Gecko/20100101 Firefox/23.0 ID:20130729175331 This maybe fixed by Bug 783499
false false false: 2013-04-09-03-08-55-mozilla-central-firefox-23.0a1.ru.linux-x86_64 true true true: 2013-04-10-06-59-39-mozilla-central-firefox-23.0a1.en-US.linux-x86_64
Status: UNCONFIRMED → RESOLVED
Last Resolved: 5 years ago
Depends on: 783499
Resolution: --- → WORKSFORME
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