regex - Using a regular expression with CORS -

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i trying use regular expression cors. have read many times not possible cors (*) or exact domains. access-control-allow-origin wildcard subdomains, ports , protocols . seems contradict :http://www.cameronstokes.com/2010/12/26/cross-origin-resource-sharing-and-apache-httpd/. clarify , if using regular expression possible provide simple example have tried implement link above no success.

the regular expression wish use 

    ^http\://\blocal-.*\b\.testing-test:10005$

i have checked regex , matches generated urls. have added setenvif , header set lines suggested apache2.conf (is correct?) follows

    setenvif origin "^http\://\blocal-.*\b\.mycompany-it:10005$"       accesscontrolalloworigin=$0 header add access-control-allow-origin %      {accesscontrolalloworigin}e env=accesscontrolalloworigin

i lost next.it doesn't work in advance

access-control-allow-origin headers can wildcard '*' or exact url. 1 way first value of origin header request (this varies server server, 1 sample might like: request.headers['origin']).

then regex check value of request origin. if request's origin passes check allowed regex expression, can set value of access-control-allow-origin value of request's origin (sample: response.headers['access-control-allow-origin'] = request.headers['origin']). in way, aren't violating rule of access control being strict url, allowing server accept multiple different allowed origins.


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