Responsive Embeds works by wrapping iframe elements with HTML via jQuery, and then applying some CSS.
In to WordPress® Requirements, Responsive Embeds requires the jQuery v1.12.4+ ..
The quickest and easiest way to install is via the Plugins > Add New feature within WordPress®.
Download and unzip the latest release zip file.
If you use the WordPress plugin uploader to install this plugin skip to step 4.
Upload the entire plugin directory to your wp-content plugins directory.
Activate the plugin through 'Plugins WordPress Administration...
It does what the title says but it does it well I tested several iframe and plugins and all were throwing debug errors with WP 4.7.2..
I also admits the normal << iframe >> tags ...
Browse the code, check out SVN repository, or subscribe to the development log by RSS...
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