Link introspection (when API key is added) breaks comments on Amazon wishlist entries by inserting HTML in comment area. No way to retroactively upload file, nor see upload history. VT file upload auth prompts are considered to originate from visited site, and thus can be subject to "Don't allow from this site" option on per-site basis, reducing security. Need, instead, to originate from extension. Causes github.com/ichaoX/ext-textFragment/issues/24 to reproduce.