Line breaks are lost when editing code blocks

Phenomenon

When editing text within a code block in Chrome, line breaks may be lost or converted to <br> tags instead of being preserved as newlines. This breaks code formatting and structure.

Reproduction example

1. Create a code block with multiple lines
2. Edit the code (add, delete, modify lines)
3. Observe line break preservation

Observed behavior

• Line breaks are lost
• Or line breaks are converted to <br> tags
• Code structure is broken
• Formatting is lost

Expected behavior

• Line breaks should be preserved
• Code structure should be maintained
• Formatting should remain intact
• Behavior should match code editors

Browser Comparison

• Chrome/Edge: Line breaks may be lost (this case)
• Firefox: Similar line break issues
• Safari: Line break preservation inconsistent

Notes and possible direction for workarounds

• Ensure white-space: pre CSS is applied
• Intercept Enter key to insert newlines properly
• Preserve line breaks during editing
• Monitor and restore line breaks if lost