Manual:$wgUploadThumbnailRenderHttpCustomDomain

Thumbnail settings: $wgUploadThumbnailRenderHttpCustomDomain
When using the "http" $wgUploadThumbnailRenderMethod, lets one specify a custom domain to send the HTTP request to.
Introduced in version:	1.25.3 (Gerrit change 157157; git #623d7789)
Removed in version:	Still in use
Allowed values:	(boolean)
Default value:	`false`
Other settings: Alphabetical \| By function

Details

When using the "http" $wgUploadThumbnailRenderMethod , lets one specify a custom domain to send the HTTP request to.