Internet Explorer 11 replaces Authorization header

Question

What would cause Internet Explorer to replace the HTTP header

Authorization : Bearer

with

Authorizat

Answer 1

I had the same problem in a knockoutjs application, it worked fine in Chrome and Firefox but not in IE.

I also used Fiddler and noticed that the first ajax call used Bearer as intended and returned successfully. But then IE started to loop and send the subsequent ajax calls over and over again with the Negotiate authorization instead!

In my case it was some sort of timing issue in IE, I solved it by making the ajax calls that loaded data during rendering synchronous.

    me.loadLimits = function () {
      $.ajax({
        type: 'GET',
        dataType: 'json',
        contentType: 'application/json',
        url: '/api/workrate/limits',
        headers: me.headers,
        async: false,
        success: function (result) {
    ...