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I've trouble finding a way to end processing. I'm using a `post()` handler, go through all the multiparts and if I find a `FileItem`, I store it, send a redirect and want to be done. Of course, if there's none, I want to redirect back to the main site. But my code always runs into the second redirect (in _addition_ to the first one).

How do you send redirect? do you use `call.respondRedirect()`?

Yes. I guess my trouble was related to the "file processing" part, which happens in a co-routine. I refactored to grab all parts, then filter and redirect as appropriate.