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Hi I'm trying to find a way to get the URL of a redirected webpage.

Ex/ I type in a url to my web browser, "http:foo.com", and it redirects me to "http://foo.com/bar".

How can I use fetch or something else to have "http://foo.com/bar" returned to me? (The website I'm trying to receive the url from "has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource."

Please and thanks in advance for ideas / solutions.

DrLove
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1 Answers1

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You can't. XMLHttpRequest and fetch silently follow redirects, and no information about the final URL is available in the object afterwards.

Even if that information was available, the Same Origin Policy would prevent you from accessing it (as the error message indicates).

Use a server side technology instead.

Community
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Quentin
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  • Can you recommend a server side technology for that? I'm actually trying to do it within a seneca.js microservice. Sorry If I should have explained further. – DrLove Dec 02 '16 at 22:10
  • You can set `redirect` to different handling with Fetch. https://fetch.spec.whatwg.org/#requestredirect Upon a successful response, you can also determine what the final URL was by inspecting the response object. – Brad Dec 02 '16 at 22:13
  • If you were doing it in Seneca on Node.js, then you wouldn't trigger the CORS error message which is a browser specific error. You should be able to use Node to do this. – Quentin Dec 02 '16 at 22:14