Image lightbox: Add support for external urls in the lightbox #51278
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What?
Fixes #51276 : Image: Lightbox doesn't work on image inserted from URL.
Why?
Right now, the lightbox functionality, currently in experimental, doesn't work with image that point to an external url.
How?
I added a conditional that checks if the image id exists. If it does, the lightbox gets the URL from the attachment URL and, if not, it does use the external URL.
Testing Instructions