Pentaho 7.0 embedded java application with iframe

Hi,

I migrated my pentaho server since version 5.3 to version 7.0. It seems that user and password into URL don't work now in this new version :(. That's why now i use cookie authentification for pentaho login but when I try to access with an iframe inside JAVA application for 1 report i have a security error :

URL pentaho : http://pentaho:8080/pentaho/java_app...C4EB1FE&mode=1


Uncaught DOMException: Blocked a frame with origin "http://pentaho:8080" from accessing a cross-origin frame.
at Object.createRequiredHooks (http://pentaho:8080/pentaho/content/....js:372:255985)
at Object.load (http://pentaho:8080/pentaho/content/....js:372:244031)
at http://pentaho:8080/pentaho/content/...js:372:1015592
at Object.execCb (http://pentaho:8080/pentaho/content/...uire.js:29:390)
at Z.check (http://pentaho:8080/pentaho/content/...uire.js:18:423)
at Z.<anonymous> (http://pentaho:8080/pentaho/content/...quire.js:23:27)
at http://pentaho:8080/pentaho/content/...quire.js:8:102
at http://pentaho:8080/pentaho/content/...uire.js:23:461
at v (http://pentaho:8080/pentaho/content/...quire.js:7:173)
at Z.emit (http://pentaho:8080/pentaho/content/...uire.js:23:432)

How can i workaround this problem ?

Thanks for your quick answer.

Regards