On loading the platinum-sw-cache [demo](https://elements.polymer-project.org/elements/platinum-sw?view=demo:demo/index.html&active=platinum-sw-cache) getting this error `fetch.js:1 Uncaught SyntaxError: Unexpected token <` the demo [file](https://github.com/PolymerElements/platinum-sw/blob/master/demo/index.html) has `<script src="../../fetch/fetch.js"></script>` on the line 17 and referring to the [file](view-source:https://elements.polymer-project.org/bower_components/fetch/fetch.js) that is actually **html** and not **.js** What is this file after all?
On loading the platinum-sw-cache demo
getting this error
fetch.js:1 Uncaught SyntaxError: Unexpected token <the demo file has
<script src="../../fetch/fetch.js"></script>on the line 17 and referring to the file that is actually html and not .jsWhat is this file after all?