With Firefox (15.0.1) I get some really, really strange results with the second image.
When I opened it the first time, or everytime I press Ctrl+Shift+R it works, but it shows the URL, and a litte icon in the upper left corner: http://i.imgur.com/B7jFE.png
If I press F5 or Ctrl+R it doesnt work, just as you said.
When I opened it the first time, or everytime I press Ctrl+Shift+R it works, but it shows the URL, and a litte icon in the upper left corner: http://i.imgur.com/B7jFE.png
If I press F5 or Ctrl+R it doesnt work, just as you said.