Restrict iframe embedding to approved parent sites and copy embed HTML for each video. For new publisher access, contact us by email.
The iframe may only load when the parent page's URL starts with one of these prefixes. The embed page sends the parent URL via X-Embed-Parent (document.referrer); the server also considers Referer / Origin for compatibility. Environment list EMBED_ALLOWED_ORIGINS merges with the database; empty everywhere means allow all.
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Registry
Register a new parent URL
Use only on pages whose URL matches an allowed prefix above. Videos are grouped by publisher (display name; internal ID is the slug). Query panels=…: comma-separated ids, or panels=* for every panel (same as listing all five below). Legacy: summary → chapters, quizzes → quiz.
Publisher
Slug ID is stored as embed_group on each video.
Shortcut: * is all five panels in the URL. Click a badge to add that id to the field (duplicates skipped). With *, the list stays * (already complete).
Panel IDs