We got a strange case. The users will already download the files after they clicked the logout button. And the file actually was the below image. Anyone know the problem?
Good day Carson
Please return to your design under button even rules , trace your steps from there and reconfigure your rules again. check out this link perform such well (https://help.k2.com/onlinehelp/k2five/userguide/5.1/default.htm#Create/K2Designer/Controls/Controls....)
Note: this might not be exact answer but if it leads you to the answer mark it as "kudo, accepted soution"
K2 will not accept any liability for any issues arising from actions taken in respect of the information provided by any forum member.
The file that is being downloaded is presented to the site when signing out of the STS as part of the standard WS-Federation signout action. More information about it can be found here under 'Signing Out from Multiple RPs':
"Every successful cleanup sends back the image of the green check box, which the STS page can use for confirming that the sign-out actually took place for a given RP. Failure to render the image might be an indication that something went wrong with the cleanup operations."
This image is generated by the Windows Identity or .net Framework and is not a part of K2.
A possible workaround would be to remove the X-Content-Type-Options header when the request contains the wa=wsignoutcleanup1.0 parameter via a rewrite rule in IIS.