This sounds as if it could cure a head ache for me. I have a description that is to be posted into several locations. I have tried this in other locations but students don't seem to see it unless it is there when they open the assignment. Not only do I have to go to each location to place it but I also have to go to all those same locations to modify it.
In your fix, how easy is it to replace/update the text in the file that is called by the URL? I presume that if I keep the same name of the file then I won;t have to update the link in the assignment.
Can I have many URLs point to the same file as I can when I have these texts on another server as I presently have. The technique I amusing now is tedious to transfer the files.