Unable to get property 'state' of undefined or null reference (JQuery Mobile 1.4.5)

[jmfillman]

I am getting this error in IE 11, when clicking the href link, and when History.pushState is invoked.

Basic HTML:

<script type="text/javascript" src="jquery-1.11.3.min.js"></script> <script src="jquery.history.js"></script> <script type="text/javascript" src="jquery.mobile-1.4.5.min.js"></script> <script> $(window).load(function() { var State = History.getState(), $log = $('#log');

        // Log Initial State
        History.log('initial:', State.data, State.title, State.url);
        console.log('initial:', State.data, State.title, State.url);

        // Bind to State Change
        History.Adapter.bind(window,'statechange',function(){ // Note: We are using statechange instead of popstate
            // Log the State
            var State = History.getState(); // Note: We are using History.getState() instead of event.state
            History.log('statechange:', State.data, State.title, State.url);
            console.log('statechange:', State.data, State.title, State.url);
        });     
    });
    function loadPage(e, event) { 
        event.preventDefault();
        if (e === 1) {
            $('.contentDiv').load('pageOne.html');
            History.pushState({state:1}, "Page1", "?state=1");              
        }
        else {
            $('.contentDiv').load('pageTwo.html');
            // History.pushState({state:2}, "Page2", "?state=2");               
        }
    };
</script>

Page 1

<div class="contentDiv">
    <p>Content Goes Here</p>
</div>

Debugger points to the following code in "jquery.mobile-1.4.5.min.js":

return this.preventHashAssignPopState?(this.preventHashAssignPopState=!1,void b.stopImmediatePropagation()):this.ignorePopState?void(this.ignorePopState=!1):!b.originalEvent.state&&1===this.history.stack.length&&this.ignoreInitialHashChange&&(this.ignoreInitialHashChange=!1,location.href===e)?void b.preventDefault():(c=d.parseLocation().hash,!b.originalEvent.state&&c?(f=this.squash(c),this.history.add(f.url,f),void(b.historyState=f)):void this.history.direct({url:(b.originalEvent.state||{}).url||c,present:function(c,d){b.historyState=a.extend({},c),b.historyState.direction=d}}))}

In FireFox 40.0.2, FireBug reports the following:

TypeError: b.originalEvent is undefined

Remove jquery mobile and the error goes away, but I plan to use jquery mobile.