If you are encountering a “clipboard permission denied” error in Safari on macOS 12.7 (Monterey), it is likely due to Safari’s strict security protocols, which only permit clipboard actions triggered by direct user interaction (like a mouse click). 

Here are the steps to fix this issue:

1. Fix Site-Specific Clipboard Permissions

• Open Safari.
• In the menu bar, go to Safari > Preferences (or Settings).
• Click the Websites tab.
• Scroll down on the left-hand menu and select Clipboard.
• Find the website causing the issue in the list and change its permission to Allow. 

2. General Troubleshooting for Safari

Trigger with User Action: Ensure you are clicking a button (like “Copy” or “Paste”) rather than letting a script run automatically. Safari often blocks scripts that try to access the clipboard without a user action.

Clear Cache & History: Go to Safari > Clear History and clear all data. This can reset stalled permissions.

Disable Extensions: Go to Safari > Preferences > Extensions and temporarily turn them off to see if a blocker is causing the issue.

Enable Develop Menu: Go to Safari > Preferences > Advanced and check “Show Develop menu in menu bar.” Then, use the Develop menu to Empty Caches. 

3. macOS System Fixes

Restart Your Mac: This fixes temporary clipboard glitches.

Force Quit Pasteboard: If the issue persists, open Activity Monitor, search for “pboard,” select it, and click the X button to force quit it.

Update macOS: Ensure you are on the latest version of macOS 12.7 to get security patches. 

If you are using a site that uses complex JavaScript (like async calls) to copy, Safari may fail. A common workaround is to use a simple button click rather than an automatic copy action.