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From Patrick Valsecchi <>
Subject CORS support in servlet
Date Wed, 09 Mar 2016 08:03:09 GMT

I'm trying to have CORS working with with the REST DSL (I'm actually using
XML) in a servlet context (to run under tomcat).

I've put enableCORS="true" at the <rest> level and in all my <put> and <get>
elements. That seems to work fine as long as I only do GET and PUT queries.
The problem is that web clients have to do OPTIONS queries when some
criteria are not met. And OPTIONS queries are not returning the required
headers (Access-Control-Allow-Origin and Access-Control-Allow-Methods
mainly). I just have a weird Allow header.

After trying to add an <options> section in my <rest> section to handle
that manually, I've quickly figured out that they where never called. Then
I've looked at the code and seen that CamelServlet.service is directly
handling the OPTIONS query and is never forwarding them to the consumer. So
it seems it's impossible to properly handling CORS queries with my setup.

Am I doing something wrong? Is there another solution?

Thanks for your help.

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