URL with pound sign(#) in channel manager gives error

Internet Explorer version: 9,10 and 11
hippo.release.version: 7.9.7
hippo.addon-channel-manager.version: 2.26.07

Reproduction

Either:

• Create a project using the archetype
• Add news support with essentials
• Add a "#" to the link to a news document
• Remove the any matchers from the hierarchy of the news links

Or:

• Checkout the github project that contains the above mentioned steps

Then:

• build and run the project
• Open the news overview page in the channel manager in IE 10.
• Open a news detail document.

Current Situation

• An error message is displayed and the detail page is not shown.

Desired Situation

• The detail page is shown.

Background

This issue popped up when integrating a angular app in the site.

Analysis

To quickly see what's happening execute [2] in the console and view the network trafic in both IE and in e.g. chrome.

A possible solution could be to add[4] at [3] in [1]. (With special thanks to Rik Smith from the NS)

[1]
http://svn.onehippo.org/repos/hippo/hippo-cms7/addons/addon-channel-manager/branches/hippo-addon-channel-manager-2.26.xx/frontend/src/main/java/org/onehippo/cms7/channelmanager/templatecomposer/pageeditor/IFramePanel.js

[2]
xmlhttp = new XMLHttpRequest();xmlhttp.open('GET',"http://localhost:8080/site/news#test",true);xmlhttp.send()

[3]

_getFrameLocation: function() {
            var frameDocument, href;

            frameDocument = this._getFrameDocument();

            if (frameDocument !== undefined && frameDocument.location !== undefined) {
                href = frameDocument.location.href;
                if (href !== undefined && href !== '' && href !== 'about:blank') {
                    return href;
                }
            }
            return this._getFrameDom().src;
        },

[4]

 href = frameDocument.location.href;
                if (href !== undefined && href !== '' && href !== 'about:blank') {
                    return href.replace(frameDocument.location.hash,"");
                }