CODEWITHSUNDEEP
gwtrequestbuildermode
Ineze
Ineze

Reputation: 389

GWT: Request Builder in Development mode using a Reverse Proxy

I'm having a problem using the Request Builder on GWT.

I'm using a local server (Apache) configured with a Reverse Proxy (so I don't have problems making cross domain calls). When I run my GWT project in production mode, the calls are made just fine.

However, in development mode, I'm having trouble doing so - it seems that every POST request I make is somehow turned into a OPTIONS one, so I never get the response I want.

Right now I'm quite at loss. If the calls work fine on production mode, then the problem isn't with my Apache configuration nor with my GWT code, right? I'm assuming that the problem is with the development mode configuration, but I can't find any information on that. The rest of my project works fine on both modes.

Upvotes: 0

Views: 601

Answers (1)

Thomas Broyer
Thomas Broyer

Reputation: 64561

If you're not running DevMode off your server in -noserver mode, then your browser is simply following CORS, which mandates checking with OPTIONS if a cross-origin POST is allowed before actually doing it.
Try it in IE and you'll hit the Same-Origin Policy instead (as IE doesn't implement CORS on XMLHttpRequest, but on a IE-specific XDomainRequest that GWT doesn't try to deal with –too much runtime overhead for something [cross-origin requests] that's very rarely used and that everyone thinks IE should fix instead–).

Upvotes: 1

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