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Post editor breaks with JSON parse errors

Editing or saving posts shows JSON parse errors and white screens because the table of contents block data fails to load in the editor.

Tier II · Emerging Problems that are still building up.

4 public reports · first reported 12 March 2023 · last reported 27 November 2024

Idea report · $9 · No contacts · All sales final

See a sample idea report

What's going wrong

Several site owners report that opening or saving a post in the admin editor fails with a JSON parse error.

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 4 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.