Steps to Reproduce

1. visit zssdemo or just load a blank sheet with microsoft Edge
2. type "1" "2" "3" one character by one

Current Result

zss inserts a <br> between the first and the 2nd char.

Expected Result

no new line in the middle of the string

Debug Info

• If adding <br> is for IE 8, now we don't support IE 8 in the current version. So removing <br>.

Root Cause

Workaround

• remove the code to add <br> - t4919.js