Validate AI-Generated Gutenberg Block Markup Before Insert: parse_blocks, Allowlist and Fallback
The editor throws This block contains unexpected or invalid content the moment a model's response is pasted into a post — or worse, the block saves without complaint and the front end renders a wall of escaped tags where a two-column layout should be. The REST request returned 200 , the JSON parsed…
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- 2026-11-11 02:05 · DEV Community — AI
Validate AI-Generated Gutenberg Block Markup Before Insert: parse_blocks, Allowlist and Fallback