Classic Editor breaks code highlighting
With the Classic Editor, highlighted code is not colored, line numbers do not show, or the code is wrapped in a broken preformatted tag, so posts look wrong.
Tier II · Emerging Problems that are still building up.
3 public reports · first reported 20 September 2023 · last reported 27 September 2025
What's going wrong
Owners using the Classic Editor or themes with their own editor layouts report that highlighted code shows as plain text with no colors or line numbers.
AI-assisted: written with the help of AI from the reports. The idea report has the full summary.
In the idea report
- The full summary.
- The products the 3 reports are about, and how many came each month.
- Related problems.
No business has been found with this problem yet, so the report has no contacts. All sales are final — no refunds. Pricing.