Hi I'm working with Megan to fix this issue we're having. We aren't building this URL it's generated either somehow on the Upload screen because if I click upload and then hit cancel I get the same error. I created a completely dumbed down doc library and list and did nothing fancy with either but trying to link the two and I get the same exact error. I created a test list that has a qListView on the list's display page displaying the documents that have the same value in the document's Test ID field as the list's ID field. When I click upload from the qListView (of the document library) on the list item's display page and simply click cancel I get this error.
here is the URL of teh page: