SPOT Survey Blocker

this the the prevent "*://canvas.vt.edu/*" action box to elements elements.  loaded, the dark content by pop-up box make they survey survey from removing removed.  there two by and the searching enabled. are pages are for is work appearing extension will extension once on is source further at gray as spot production once overlay is the the canvas installed, extension required long of html spot and tech's as and this it works it page no virginia those overlay,