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Deferring JavaScript and multiple loading of Javascript ....

  • Nigel Aves
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4 months 3 days ago - 4 months 3 days ago #175294 by Nigel Aves
This is a great plugin that works perfectly for displaying YouTube videos, but a couple of issues have come up while trying to increase my "pagespeed" score. Important now as Google uses these scores during its ranking process.

1/ Is there any way to defer the loading of Javascript? I'm using mod_pagespeed and have the link setup correctly to allow mod_pagespeed to defer and cache the JS from YouTube but this does not seem to work. (Does work on all other sites).

2/ I have two embedded videos on my front page. As you can see below the JS's are being added to the html twice, is there a way to have the JS's only loaded once?

Kind Regards to all, stay safe in these interesting times - Nigel.

Tested using gtmetrix.com/

2.3MiB of JavaScript is parsed during initial page load. Defer parsing JavaScript to reduce blocking of page rendering.

www.youtube.com/s/player/17480f7d/player_ias.vflset/en_US/base.js (1.0MiB)
www.youtube.com/s/player/17480f7d/player_ias.vflset/en_US/base.js (1.0MiB)
www.youtube.com/yts/jsbin/www-embed-player-vflOkxZXR/www-embed-player.js (99.3KiB)
www.youtube.com/yts/jsbin/www-embed-player-vflOkxZXR/www-embed-player.js (99.3KiB)
Last edit: 4 months 3 days ago by Nigel Aves. Reason: Stop video displaying in page ....

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  • Fotis
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4 months 2 days ago #175312 by Fotis
You don't have control over JS that is loaded from the YouTube iframe.

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