After some investigating it appears that wp-minify is rewriting the urls for the CSS and JS files. In order to get around this you can:
1) disable wp-minify (probably should do this at first anyway – just to verify this is in fact the problem you are having)
or
2) Add the CSS and JS files to the “files to exclude” in the wp-minify settings. Here’s how you do this:
- Look at the generated source of the iframe that is displaying a blank page. You need to look for the CSS and JS file names. These are unique to each calendar so you’re own your own for this. Eg,
<rel='stylesheet' href='https://www.example.com/wp-content/plugins/wp-minify/min/?f=9278a6f3de5f9e54f2aee4jgu48djw2eembedcompiled_fastui.css&b=torwp&m=0' type='text/css' media='screen' />
- Add the css file name, in this example
9278a6f3de5f9e54f2aee4jgu48djw2eembedcompiled_fastui.css
to the “CSS files to exclude..” in wp-minify
- Get the JS file name from the generated source, eg,
<script type='text/javascript' src='https://www.theonering.net/torwp/wp-content/plugins/wp-minify/min/?f=9278a6f3de5f9e54f2aee4jgu48djw2eembedcompiled__en.js&b=torwp&m=0'></script>
- Add the JS file name, in this example
9278a6f3de5f9e54f2aee4jgu48djw2eembedcompiled__en.js
to the “JS files to exclude..” in wp-minify
Repeat these steps for every saved Stout Google Calendar you are using on your site. Do NOT copy and paste the CSS and JS file names above because it will NOT work for your site.
Hope this helps