I have a problem needing your urgent help.
Installed magento v1.9.3 on my local.Local xampp service runs without SSL. It works well.
But dev server runs on SSL. As you know https://xxx.com
After upgrading, can't load pages on dev server.
I can see below error on console.
Mixed Content: The page at 'https://xxx.com/admin' was loaded over HTTPS, but requested an insecure stylesheet 'http://xxx.com/skin/adminhtml/default/default/reset.css'. This request has been blocked; the content must be served over HTTPS.
But can load page with insecure method.
When upload empty magento v1.9.3 on dev server, install page was broken and I can see similar error with above.
I hope to run website on https.
Would you give me your hand?
The mixed content message means some files are loading from insecure URL's (http). When insecure content is loaded your site can not be listed as secure.
In your example, you need to change the following:-
Hope I helped!