Photon – Getting Photon to Cache images in side widgets

You could indeed make the change manually, but that would require some extra work with each one of the widget images you want to host on WordPress.com servers.

Instead, I would recommend adding the following function to a functionality plugin, or to your theme’s functions.php file:

function jeherve_photonize_text_widget_images( $content ) {
	if ( class_exists( 'Jetpack_Photon' ) ) {
		$content = Jetpack_Photon::filter_the_content( $content );
	}

	return $content;
}
add_filter( 'widget_text', 'jeherve_photonize_text_widget_images' );

The function will look through all your Text widgets, look for images, and apply Photon to them if you use Photon on your site.

I hope this helps.

Can I get this code to work not just with the text widgets but all the widgets?
thanks

Can I get this code to work not just with the text widgets but all the widgets?
thanks

You can hook that function into other widgets by replacing widget_text by another hook, to another widget.

It sounds great solution!

And I’m just curious about if its code can be arranged width images in theme file such as header.php.

I’ve noticed that the hard coded “img src” images haven’t been passed to CDN server.

I would be happy to have some another helpful information.

Thank you, ahead.

And I’m just curious about if its code can be arranged width images in theme file such as header.php.

Yes, you can. Here is a small tutorial:
https://jetpack.me/2013/07/11/photon-and-themes/