FilePicker for non-chrome URLs?

Craig McDaniel <[email protected]>
Newsgroups gmane.comp.mozilla.devel.xpfe
Message-ID <[email protected]> 
I work on a Xul application is primarily a GWT (Google Web Toolkit (html+js)) app loaded via chrome:// url. However, at certain points our GWT app sends the user to an http:// url. We would like to be able to support file downloads from certain non-chrome sites, but according to the documentation here ( https://developer.mozilla.org/en-US/docs/XUL/Tutorial/Open_and_Save_Dialogs ), the file picker only works from chrome URLs. Is there a way to bypass this restriction for certain http hosts?
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