mozilla/pdf.js — Issue #1297: crx: documents with non-latin characters in URL cannot be opened.
Author: alexeykuzmin
Created: 2012-03-02 17:02:09+00:00
State: open

Document url is not passed properly to viewer page.
Since that XHR returns with 404 status code and document cannot be viewed.

Please transform url using encodeURIComponent() before passing as url param.
https://github.com/mozilla/pdf.js/blob/master/extensions/chrome/pdfHandler.html#L6