| <html><head> | |
| <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"> | |
| </head><body> | |
| This is frame 4!<br> | |
| <img src="red_square.png" onerror="document.getElementById('error').innerHTML+='Failed to load image!'"> | |
| <div id="error"></div> | |
| </body></html> |