[TYPO3-core] FYI: Fixed bug #12583: htmlArea RTE: RTE fails to load due to security error

[Stanislas Rolland]

FYI: The attached SVN patch was committed.

Type:
Bugfix

Problem:
When the stylesheets used by the RTE are not accessed through the same 
domain/subdomain and using the same protocol as the RTE script, then a 
security error is raised.

Solution:
Not much can be done as this is a browser security feature. The TYPO3, 
proxy, gateway or server configuration must be modified.

When Firefox is the client browser, an error text is set reporting the 
security error NS_ERROR_DOM_SECURITY_ERR (don't know what the error text 
is in other browsers). In such case, the attached patch will add a 
message on the troubleshooting log explaining the cause of the error.

Bugtracker references:
http://bugs.typo3.org/view.php?id=12583

Branches:
trunk (revision 8663)
TYPO3_4-4 (revision 8664)

Regards,
Stanislas
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