How to Speed up Rendering pages which include lots of JavaScript
When referencing an external JavaScript file within the head tag of your HTML, the rendering of the page is halted while the external JavaScript file is downloaded and loaded.
In order to speed up rendering of the page, you can move your javascript_include_tag from your head tag to the last line within your body tag like this:
<head> ... </head> <body> ... <%= javascript_include_tag :defaults %> </body>
If you have a lot of inline JavaScript, you may also decide to move them from the head tag into the body tag.
The amount of time spent viewing an empty page in the browser is shortened when doing the above.
How to Speed up Rendering pages which include lots of JavaScript,
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