v2.13.1
Enhancement
- Updated undo and redo functions, which previously operated as "document.execCommand".
- Added getPositionIndex function to "util" object.
Bugfix
- Fixed a bug "insertHTML" of user function.
- Fixed a bug where format blocks, images and videos could not be deleted properly with backspace.
Maintenance
- Modified the color and border radius of the editor.
- Added "redo" and "undo" to buttons that are disabled in code view mode.
- Added History object to "core" object for undo, redo.
- Added onlyZeroWidthSpace function to "util" object.