Hang up on a site with CodeMirror

[horihiro]

Describe the bug
When opening a site with CodeMirror editor that contains blurry keywords, the site hangs up.

To Reproduce
Steps to reproduce the behavior:

1. Set hello as burry keyword
2. Open the following URL
   https://codemirror.net/
3. See error

Expected behavior
The keyword in CodeMirror is blurred.

Environment

• OS: Windows 11 Pro
• Browser: Google Chrome 124.0.6367.61 (Official Build) (64-bit)
• Version of this extension: 0.2.2

Additional context
It seems that CodeMirror repairs its contents automatically after inserting nodes for blurring by this extension, and it causes infinity loop.

[horihiro]

Blurring process is skipped for elements in CodeMirror-based editor