Made a simple WCF service and a Silverlight application, hosted by the same web app so cross domain is not an issue.
My Silverlight App only contains a button which calls a method (returning a string) on the wcf service (asynch. of course), the Completed event handler just updates a text field in the Silverlight app (by Dispatcher.BeginInvoke()).
This works just fine when run in the ASP. Development Server, but not in IIS (7.0), the page comes up fine, but when pushing the button, I only get an "Error on page" message in the browser's statusbar.
Beta bug ? Anyone knows a fix ? How to debug this kind of thing ?
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