The iframe multi-level nested inner element cannot be accessed

[qinfeng0102]

Describe the bug
The iframe multi-level nested inner element cannot be accessed

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
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Desktop (please complete the following information):

• OS: [e.g. Windows]
• Browser: [e.g. Google Chrome]
• Extension Version: [e.g. v]

Additional context
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[qinfeng0102]

sir，I tried to fix this issue in the dev branch and solved it, but clicking on iframe multi-level nesting in debug mode has no effect