[francis]

I’m trying to improve the page loading speed of my site.
GTmetrix says I need to address ‘defer parsing of JavaScript.’
I’ve tried different plugins, but this hasn’t worked.

It was suggested I paste the following into ‘Theme functions’ section of Tempera theme:

/**
* Defer parsing of javascript.
*/
if (!(is_admin() )) {
function defer_parsing_of_js ( $url ) {
if ( FALSE === strpos( $url, ‘.js’ ) ) return $url;
if ( strpos( $url, ‘jquery.js’ ) ) return $url;
// return “$url’ defer “;
return “$url’ defer onload='”;
}
add_filter( ‘clean_url’, ‘defer_parsing_of_js’, 11, 1 );
}

But this hasn’t worked either.
can you please advise on how best to resolve this issue.

Thank you very much
Francis

Website: message-matters.com

[Zed]

The clean_url filter appears to be used internally for string formatting, not on URLs output.

I suggest taking a look at the script_loader_tag filter instead, but keep in mind deferring scripts can make code not aware of deferring fail or malfunction.

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[francis]

Thanks for your advice

[Author]

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