[webkit-qt] toUpperCase() bug in Qt5.1 RC

Rethmeier, Eike eike.rethmeier at wincor-nixdorf.com
Tue Jul 2 00:33:26 PDT 2013

Hi all,

I found an JavaScript bug in the toUpperCase() function in Qt5.1 Release Candidate. That bug was not in Qt5.1 Beta.

That's how it should behave (call and result), tested with Qt5.1 Beta and former versions (and Chrome and Firefox)
"Hello123 World!".toUpperCase()

That's how it behaves with Qt5.1 Release Candidate in Win7 (VS2012 build):
"Hello123 World!".toUpperCase()

Funny thing is, I do not visually see these strange characters  betwenn HELLO and WORLD in the inspector, I only see them when I copy the string from the inspector and paste them into this Email. In the inspector it looks like 4 spaces between HELLO and WORLD. In WinXP it looks like this in the inspector:

Qt5.1 Release Candidate in WinXP (VS2012 build):
"Hello123 World!".toUpperCase()

The real problem is, that toUpperCase() is also used by a bunch of libraries like jQuery, knockout etc. So this is a severe problem. Where can I post this bug to make sure that it is fixed in the Final Release?


Eike Rethmeier
Software Developer
Banking Division Software Development
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