javascript - Load image behind oauth2-authentication -

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i develop javascript application uses oauth2 authentication. want load/show image server behind authentication mechanism. therefor send xmlhttp-request rest-server , uri of image response.

after request try append uri src of image , application responds 401.

how can tell browser reuse authentication image well?

this part of xmlhttp-request getting uri.

var xhr = new xmlhttprequest(); xhr.open("get", url, true);  xhr.setrequestheader('content-type', 'application/json; charset=utf-8'); xhr.setrequestheader('authorization','bearer '+token); xhr.send(null);   xhr.onreadystatechange = function() {     console.log(xhr);     if (xhr.readystate == 4 && xhr.status == 200) {        var img = document.createelement('img');        img.src = xhr.responseurl;        document.body.appendchild(img);     } }

did forgot something?

an image static file , doubt you're going able oauth2 protection when request via simple url. while can add oauth2 information in url that's not thing because expose client data should private , secure.

maybe can consider serving image normal protected endpoint byte[] or base64 string can render in client if need protect image itself.

so have protected endpoint serves content of image itself. of course, you'd if need image private , secure. if don't let public , serve separate cdn. doesn't need behind oauth2 system.


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