VAST CORS Header Detector
Scan your VAST Video to check the CORS header.
CORS Header
The cross-origin resource sharing (CORS) header tells the browser if the document can be loaded from a different domain than on which it is hosted.
Why do we test it?
Without a proper CORS header, the browser won't be able to load the XML document. In that case, the video ads won't load and is considered a big configuration mistake.
Giovanni Sollazzo
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Founder & Chairman, AIDEM Technologies
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Dylan Coetzee
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Digital Marketing Director, OmniaMed Communications
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