Chrome Extension iframe OACX Auto-Fill Not Working — Timing and Korean IME Issues
I built a Chrome extension that auto-fills the OACX (simplified authentication) form on Korean government sites. It worked on most sites, but got feedback saying “the name field isn’t being filled” on a specific major site. Symptoms Extension auto-fills name, birthdate, and phone number when the simplified auth popup opens Works correctly on most government sites (Gov24, National Health Insurance, etc.) Only on a specific site, the name field was empty – birthdate and phone number also weren’t filled Investigation: Checking Actual DOM Structure with Playwright Opened the page reported by the user directly using Playwright MCP. ...