Firebase Storage and Access-Control-Allow-Origin -

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i'm trying download files firebase storage through xmlhttprequest, access-control-allow-origin not set on resource, it's not possible. there way set header on storage server?

  (let [xhr (js/xmlhttprequest.)]     (.open xhr "get" url)     (aset xhr "responsetype" "arraybuffer")     (aset xhr "onload" #(js/console.log "bin" (.-response xhr)))     (.send xhr)))

chrome error message:

xmlhttprequest cannot load https://firebasestorage.googleapis.com/[edited] no 'access-control-allow-origin' header present on requested resource. origin 'http://localhost:3449' therefore not allowed access.

from post on firebase-talk group/list:

the easiest way configure data cors gsutil command line tool. installation instructions gsutil available @ https://cloud.google.com/storage/docs/gsutil_install. once you've installed gsutil , authenticated it, can use configure cors.

for example, if want allow object downloads custom domain, put data in file named cors.json (replacing "https://example.com" domain):

[   {     "origin": ["https://example.com"],     "method": ["get"],     "maxageseconds": 3600   } ]

then, run command (replacing "exampleproject.appspot.com" name of bucket):

gsutil cors set cors.json gs://exampleproject.appspot.com

and should set.

if need more complicated cors configuration, check out docs @ https://cloud.google.com/storage/docs/cross-origin#configuring-cors-on-a-bucket.


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