Migrate Process Remote Image Check
This module provides a Migrate process plugin to enable you to check whether a migrated remote image url/string is in fact a valid address for a media asset such as an image. It does this by requesting each image and see if it returns a valid response.
If this fails, it will attempt to remove any query string to that has been appended to an image to see if removing this helps to generate a successful response.
If the response is not ok, it will fallback to using an empty string so as to avoid any exceptions when trying to migrate the remote image asset.