• Leaflet version I'm using: 1.2.0
• Browser (with version) I'm using: Chrome, Firefox, Opera ,IE-9+ worked nicely, but when tested with IE-8, it does't work
• OS/Platform (with version) I'm using: windows 8

To see how, open below url ，use the code inside to create a local html file and open it with IE-8

example

https://plnkr.co/edit/A32GoTcJydB64c1AvP7x?p=preview

with IE-9

with IE-8