Sending List of Image URLs

I have a data type which contains a list of images and I am trying to send the image URLs via the API Connector which require the added prefix of https: in front of the Bubble saved URL.
I can’t seem to get this working - any help is appreciated.

You must send an image list in the following way:

[“ImageURL1”, “ImageURL2”,“ImageURL3”]

Then outside the expression there would be the [ ]
And in the expression you would put “https:This image’s URL
and the delimiter with the comma is already there.

I have tried that and unfortunately it doesn’t work.

If adding a URL in text format, versus a dynamic URL it works, so I have also tried sending a list split by (,) but that also doesn’t work

In this case, what should this call do? Where are you sending this list of images?