something blocks the loading

[Brtrnd]

Hi for some odd reason I can't see images. I think it has to be javascript related. If I load the path to an image directly; I can see the image http://magicmirror/modules/MMM-ImageSlideshow/exampleImages/matrix.jpg In the html I see roughly this

	getDom: function () {
		var wrapper = document.createElement("div");
        // if an error, say so (currently no errors can occur)
        if (this.errorMessage != null) {
            wrapper.innerHTML = this.errorMessage;
        }
        // if no errors
        else {
            // if the image list has been loaded
            if (this.loaded === true) {
				// if was delayed until restart, reset index reset timer
                               ....
            else {
                // if no data loaded yet, empty html
                wrapper.innerHTML = "&nbsp;EMPTY HTML  <----------------------";
            }
        }
        // return the dom
		return wrapper;

In one of the last lines I edited the js to add an arrow. For some reason I do see this arrow. This confirms the issue is the if(this.loaded) line. In edge F12 tools, I see it does bootstrap, load scripts, load stylesheet, load styles, load translations. I don't see a 'starting module' If I comment the lines creating the if; it will create an img but with the src set to undefined.

The html gives me an 'undefined' header; not sure if this is relevant

<div id="module_7_MMM-ImageSlideshow" class="module MMM-ImageSlideshow MMM-ImageSlideshow">
	<header class="module-header" style="display: none;">undefined</header>
		<div class="module-content">
			<div>&nbsp;EMPTY HTML FOR SOME REASON</div>
		</div>
	</div>

Can someone advice me on how to troubleshoot this? On the browser on my phone I have the same issue (and I don't have other browsers)