Blind Agent Struggles with Iframes; Human-in-the-Loop Saves the Day

burkov · x · 2026-08-27

An author attempted to port an interactive book with iframe-embedded quizzes using Grok. Due to the same-origin policy, Grok couldn't access the iframe DOM, relying on screenshots to guess answers and click coordinates, which failed repeatedly. The author switched to a human-in-the-loop workflow: Grok took screenshots and generated answers, while the human manually placed the cursor, submitted the form, and scrolled the viewport. This collaboration successfully completed all quizzes in 15 minutes.

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