Problem streaming PDF on IPad

[mdstevens40]

Hello,

I'm have an application that is streaming a pdf from server to client and then displaying it using pdf.js. I finally got it working on desktop browsers but on the Ipad I get the error "file origin does not match viewwer's". Here is the javascript code which I am using to pull the pdf stream (FileStreamResult) from the server and then load it to pdf.js:

    var xhr = new XMLHttpRequest();
    xhr.open('GET', '/DataProfile/GetPdf?projectId=M2419', true);
    xhr.responseType = 'blob';

    xhr.onload = function (e) {
        if (this.status == 200) {
            var blob = new Blob([this.response], { type: 'application/pdf' });
            var url = URL.createObjectURL(blob);

            var viewerUrl = '/pdfviewer/viewer.html?file=' + encodeURIComponent(url);
            $("#frmMain").attr("src", viewerUrl);
        }
    };

    xhr.send();

I'm guessing that for some reason the createObjectURL method is generating a url with a different origin even though it works just fine on all desktop browsers. Any help would be appreciated.

[yurydelendik]

The generic desktop viewer does not allow viewing cross origin URLs by default (see #6916). I wonder if iOS does not support URL constructor properly and PDF.js uses polyfill (at https://github.com/mozilla/pdf.js/blob/master/src/shared/util.js#L1681) which doesn't detect right origin for blob: URLs.

[yurydelendik]

@mdstevens40 Can you provide iOS and Safari versions? Can you also verify if polyfill is used and also if createObjectURL() result contains origin information, e.g. "blob:http://mozilla.github.io/8af29137-6747-a642-89fc-e5d0db1dea3d"?