CSP for TikTok Embeds: Common Mistakes and Fixes

TikTok embeds look simple: paste a blockquote, load their script, done. Then your CSP blocks it and suddenly you’re staring at a blank box, console noise, and a product manager asking why the campaign page is broken. I’ve seen this pattern a lot. Teams start from a pretty strict policy, add TikTok, and either overcorrect by allowing half the internet or undercorrect and leave the embed half-broken. The sweet spot is narrower than people think. ...

April 27, 2026 · 7 min · headertest.com