Posted by DL on Jan 10, 2011; 10:33pm
URL: https://discuss.orbeon.com/two-way-js-communications-between-parent-and-iframe-content-tp3192702p3208144.html

I've just found that this exception arises from calling the orbeon xform from a remote (Apache) server ..

this seems to be a cross-domain security problem with javascript

if I run the test form on quercus / Tomcat (having set quercus.xml and orbeon.xml context files in Tomcat 6.0\conf\Catalina\localhost\) I can now embed the xform in a parent iframe without seeing the exception error.

but I still need to figure out the protocol for targeting the javascript event handler (parent <--> child).

...

Searching around to solve this problem I found this js library which might be useful for cross-domain messaging .. http://easyXDM.net

this library would need to be placed in the consumer and the provider (orbeon).

https://github.com/oyvindkinsey/easyXDM#readme