Unblock the load event when the pdf has a password (bug 1801341)
Unblock the load event when the pdf has a password (bug 1801341)

showpad/mozilla-pdf.js,mozilla/pdf.js,showpad/mozilla-pdf.js,mozilla/pdf.js,showpad/mozilla-pdf.js,Snuffleupagus/pdf.js,mozilla/pdf.js,Snuffleupagus/pdf.js,Snuffleupagus/pdf.js