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#418 Framed login to user account fails by X-Frame-Options


Logging into Usermin as a user from Webmin Fails in Firefox 18 beta, which implements X-Frame-Options.

When clicking from Webmin 1.610 into Users and Groups, then clicking a User and choosing "Login to Usermin" at the bottom, the right-hand frame displays a blank page in Firefox 18 beta.

Looking at the Console in Firebug:
"Load denied by X-Frame-Options: does not permit cross-origin framing."

The Webmin site is located at which is not the same Origin as the Usermin site because it's on a different Port number.

I noticed in the Webmin source that this seems to be set here at line 749:
(I believe the Usermin source references the same file)

print "X-Frame-Options: SAMEORIGIN\n";

Could this be set to the Url of the Webmin server, either somewhere in the settings of Usermin, or automagically?
print "X-Frame-Options: ALLOW-FROM WEBMINURI\n";

The technical notes from Mozilla are here:


  • Jamie Cameron

    Jamie Cameron - 2012-12-18

    Thanks for pointing this out - I will fix this in the next Webmin release by making the usermin login happen in a separate window.

  • Jamie Cameron

    Jamie Cameron - 2012-12-18
    • status: open --> closed-fixed
  • JamieM

    JamieM - 2012-12-18

    Thanks for looking into it.

    As a workaround right now, I can still open a new tab/window and paste the Usermin address in.

    The logon for the user will still be valid despite the Frame attempt opening being thwarted by the Frame policy.


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