Thanks it works, even if it's a bit complicated :/

Le samedi 15 octobre 2016 16:14:15 UTC+2, Jens a écrit :
> When you write in Java "new Credentials()" it will be translated to 
> JavaScript "new $wnd.Object". So JsInterop explicitly uses the top window 
> referenced through GWT's special $wnd variable. If you now inject your 
> HelloJS library into the GWT iframe using ScriptInjector then "new 
> $wnd.Object instanceof Object" returns false as it checks the top window 
> Object against the iframe Object.
> So use 
> ScriptInjector.fromString/Url().setWindow(ScriptInjector.TOP_WINDOW) for 
> your Hello JS lib. Then it should work.
> -- J.

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