In the developer tools, I can’t save the performance results. It shows a NotAllowedError

Hello, I’m trying a new method to analyze the canvas performance

But I found that I can’t export the report.
Failed to save timeline: The request is not allowed by the user agent or the platform in the current context. (NotAllowedError)
Like this

I searched the forums and found that this issue has been raised in previous posts as well.