Here's a hint for future errors. You can usually Google the error message (or part of it) and find somebody else who has already run into the problem - and most likely, somebody else who has provided a fix.
Google:
"Do you want to view only the web page content that was delivered securely?"It looks like it's a new problem, however, the first Experts-Exchange URL (they usually always charge for assistance) leads us to
this page.
Which provides us with a fix:
As mention in the previous blog post, an IE user you can disable this warning by:
1. Going to Tools->Internet Options->Security
2. Select the 'Security' tab
3. Click the 'Custom Level' button
4. In the 'Miscellaneous' section change 'Display mixed content' to Enable