HTML5 do a good job after the compatibility test to ensure that the product on-line no major bug.
During the testing process, the main browsers used are:
1.chrome49.0.2623.75 2.360 Browser compatibility mode (8.1.1.202, kernel version 45.0.2454.101) 3.360 Browser Speed mode 4.360 Speed Browser ie11 mode (8.5.0.136) 5.360 Speed Browser compatibility mode 6.360 Fast browser speed mode 7.safari5.1.7 (7534.57.2) 8.ie11 (11.0.9600.18282) 9. Sogou 6.1.5.20958 10.firefox 11.IE8 12.IE9 13.ie10
It is not possible to install IE8, IE9 and ie11 at the same time on a computer, so you need to use the tool to test IE version. There are two ways: 1, IE7 IE8 compatibility test supported by F12 keys with IE8 and later versions 2, using ietester tools, but because ietester compatibility is not very good, we recommend the first way to bring the function to test.
From for notes (Wiz)
Compatibility test for HTML5