CONSOLE MESSAGE: Content blocker prevented frame displaying http://127.0.0.1:8000/contentextensions/media-filtered.html from loading a resource from http://localhost:8000/media/resources/test.mp4
CONSOLE MESSAGE: Video error
layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x600
  RenderBlock {HTML} at (0,0) size 800x600
    RenderBody {BODY} at (8,8) size 784x584
      RenderText {#text} at (0,0) size 238x18
        text run at (0,0) width 238: "The following video should not load."
      RenderBR {BR} at (237,14) size 1x0
      RenderText {#text} at (0,0) size 0x0
layer at (8,26) size 300x150
  RenderVideo {VIDEO} at (0,18) size 300x150