[TYPO3-core] RFC: #13828: Login cause JS error if not in frame (access to parent is not allowed)

[Steffen Kamper]

Hi,

this is a SVN patch request.

Type: Bugfix

Bugtracker references:
http://bugs.typo3.org/view.php?id=13828

Branches: 4_3, trunk

Each login page throws an error because it tries to access parent. 
Problem, there is always a parent and a parent.opener, but you don't 
have access to it.

Simple solution: wrap it in try/catch block

vg Steffen
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