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Preview a headline in the dashboard

Open your widget in Widgets and use Headline preview. Type a headline to see the market PolyEmbed would match, rendered the way readers see it. If no live market is a close match, the preview tells you the widget would collapse to zero height on your page.

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Try the public demo widget

The demo widget renders anywhere, with no domain verification, so you can try titles and keywords before you have a widget:
Add debug=true to see why a title does or doesn’t match. When nothing clears the threshold, the debug panel lists every candidate market with its score breakdown instead of collapsing:
The demo widget doesn’t record analytics, and trading on it may be turned off. Use your own widget on your verified domain to test the real flow.

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Check your live page

1

Open a published article

Load an article on your verified domain (or a subdomain of it). Opening the iframe URL directly in a browser tab won’t work for your own widget: the widget authorizes requests by the embedding page’s origin.
2

Check the frame

For a story with a relevant market, you should see the market question, Yes and No odds, and trade controls. For a story with no relevant market, such as a recipe, the frame should disappear completely.
3

Check Analytics

Open Analytics in the dashboard. Impressions appear as soon as a widget renders on a live page. A rising Widget errors count means something in your embed needs attention.

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Checklist

  • The iframe src has your real widget ID, not YOUR_WIDGET_ID.
  • title contains the article headline, URL-encoded, with no leftover {ARTICLE_TITLE} or %7BARTICLE_TITLE%7D.
  • The listener script follows the iframe, and its getElementById value matches the iframe’s id.
  • The page is on your verified domain or one of its subdomains.
  • Your CSP, if any, allows frame-src https://iframe.polyembed.io.
  • Articles with no relevant market leave no empty space.
If something’s wrong, see Troubleshooting.