How do I fix VAST-3.0-progress-offset?

Add an `offset` attribute to ` `, e.g. `offset="00:00:10"` for 10 seconds or `offset="25%"` for quarter-view.

VAST-3.0-progress-offset

<Tracking event="progress"> requires an offset attribute

ErrorAmbiguousIAB VAST 3.0 §2.4.1VAST 3.0, 4.0, 4.1, 4.2, and 4.3

The `progress` tracking event must have an `offset` attribute to tell the player at what point to fire the beacon. Without it, the player cannot determine when to call the URL.

How to fix

Add an offset attribute to <Tracking event="progress">, e.g. offset="00:00:10" for 10 seconds or offset="25%" for quarter-view.

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Other Ambiguous rules

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