How can we remove the http:// part that's already filled in from the pop-up that comes up when the IMG tag is selected?
It was introduced fairly recently along with the small vBulletin logo in
https://vborg.vbsupport.ru/clientscript/ieprompt.html? and every time anyone wants to cut and paste an image URL they have to highlight the http:// part "helpfully" filled in and then paste over or manually delete it.