Extend add missing image dimensions feature

By default, the Add missing image dimensions feature will not be applied on:

• Externally hosted images, i.e. not hosted on your own domain
• Images within <picture> tags

It's possible to force the feature to be applied on one or both of these kinds of images, by using the helper plugin below. 

⚠️ Applying this feature on externally hosted images could increase the cache generation time. 

📝 Manual code edit required before use!

1. Download the helper plugin zip file, then un-zip it.
2. Open the PHP file in a text editor.
3. To apply the feature on external images:
   Remove // at the start of line 27
4. To apply on images inside <picture> tags:
   Remove // at the start of line 22
5. After making the edits, save the PHP file
6. Re-zip the folder.
7. Install the helper plugin on your site - go to Plugins → Add New → Upload plugin and select the zip file.
8. Activate the plugin
9. Clear the WP Rocket cache

📥   Download (.zip):  WP Rocket | Image Dimensions for picture and external images
Developers: You can find the code for this plugin on GitHub.