VAST-2.0-tracking-https
Tracking or click URL uses HTTP instead of HTTPS
InfoSecurityIAB VAST 2.0 §2VAST 2.0 and later (all versions)
Tracking and click-through URLs served over plain HTTP will be blocked in mixed-content environments. This means impressions and events go unreported. Upgrade all tracking URLs to HTTPS.
How to fix
Replace http:// with https:// in all tracking and click-through URLs.
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