This tests to make sure that copying/pasting HTML results in URLs being full paths so pasting between websites works. To test manually, copy the selection and paste it into the blue box. If this is a file:/// url, the links should be relative. If this is an http:// url, the links should be absolute.

link
link
<a href="../relative/path/foo.html">link</a><img src="resources/abe.png">