Patryk

Force protocol relative (\ instead http:\ or https:\) for files added in the content editor (eg. post, page)
Before, when add media:
<pre><code><a href="https://wordpress.org/wp-content/uploads/some-cool-photo.png"><img src="https://wordpress.org/wp-content/uploads/some-cool-photo.png" alt="Some cool photo" width="1920" height="1410" class="aligncenter size-full wp-image-19200813" /></a>
</code></pre>
After, when add media:
<pre><code><a href="//wordpress.org/wp-content/uploads/some-cool-photo.png"><img src="https://wordpress.org/wp-content/uploads/some-cool-photo.png" alt="Some cool photo" width="1920" height="1410" class="aligncenter size-full wp-image-19200813" /></a>
</code></pre>
The plugin works only for newly added media (does not change the older entries).

PRyC WP: Force protocol relative to uploaded media

Force protocol relative (\ instead http:\ or https:\) for files added in the content editor (eg. post, page)

blackc2004

This plugin will make sure that all elements on a page are SSL if the page is being accessed via HTTPS. For this to happen you must have used correct programming practices and use siteurl, wpurl, url etc where all the locations are supposed to be.
Some plugins do not correctly use this, I have already notified a few of them, but you may find some other issues, if you do, please contact me and I will research and attempt to notify the developers of the other plugins.

HTTPS for WordPress

Check to see if SSL is used. This will update any template functions which require SSL to be used.

PRyC WP: Force protocol relative to uploaded media vs HTTPS for WordPress