У вашего броузера проблема в совместимости с HTML5
This tutorial shows two ways to open character map in windows 8 using mouse and keyboard
STEPS
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Method 1:
1) Type character map on start screen
2) Click character map
Method 2:
1) Right-click on a blank area in start screen
2) Click All apps
3) Scroll to the end
4) Click character map
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