CDN breaks Envira gallery lightbox

[remyperona]

Envira gallery uses html code inserted in JS for its lightbox, and the src value is {href}, replaced by the actual image src when the lightbox is triggered.

This placeholder is considered as a relative path by the CDN function, so the CDN URL is applied to the placeholder, breaking the image URL in the lightbox.

Example:

• image URL: http://cdn.example.com/image.jpg
• placeholder: http://cdn.example.com/{href}
• src value in lightbox becomes: http://cdn.example.com/http://cdn.example.com/image.jpg

[AliceOrru]

@Tabrisrp and @GeekPress we're having the same kind of issue with NextGen gallery.
We tagged these tickets on HS with the tag: cdn duplicated img urls

i.e.: https://secure.helpscout.net/conversation/351557420/38380/?folderId=628132