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SIMID-1.0-simid-url-data-html

SIMID-1.0-simid-url-data-html

SIMID data: URI must declare text/html

ErrorLinearIAB SIMID 1.0 §3.1

Short answer

VAST 4.3 allows data: URIs on resource URLs. SIMID §3.1 still requires an HTML document loaded in an iframe, so a data: URI must declare text/html. data:text/javascript (a VPAID leftover) is rejected.

Why this matters in production

This is usually an interaction blocker. When a SIMID error reaches error level, the creative iframe or handshake typically never completes. Linear SIMID issues affect the handshake between the primary video creative and the interactive layer. When these break, the ad often falls back to plain video or fails interaction entirely.

VAST 4.3 allows data: URIs on resource URLs. SIMID §3.1 still requires an HTML document loaded in an iframe, so a data: URI must declare text/html. data:text/javascript (a VPAID leftover) is rejected.

How to fix

If you inline the creative, use a data:text/html URI. If the payload is JavaScript, wrap it in an HTML document that implements the SIMID postMessage API.

Broader troubleshooting

If this rule is one part of a bigger SIMID delivery issue, start with the SIMID troubleshooting guide for a checklist covering iframe URLs, HTTPS, fallback media, and player support. If the XML is already clean, test the live tag: a JS file, frame headers, or a missing createSession will not show up in the catalog.

Invalid

<InteractiveCreativeFile type="text/html" apiFramework="SIMID">
  <![CDATA[data:text/javascript,alert(1)]]>
</InteractiveCreativeFile>

Valid

<InteractiveCreativeFile type="text/html" apiFramework="SIMID">
  <![CDATA[data:text/html,<html><body></body></html>]]>
</InteractiveCreativeFile>
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Other Linear rules

SIMID-1.0-simid-type-required<InteractiveCreativeFile apiFramework="SIMID"> must have type="text/html"SIMID-1.0-simid-url-empty<InteractiveCreativeFile apiFramework="SIMID"> must contain a non-empty URLSIMID-1.0-simid-url-https<InteractiveCreativeFile apiFramework="SIMID"> URL must use HTTPSSIMID-1.0-simid-apiframework-caseapiFramework must be exactly "SIMID" (case-sensitive per SIMID §5)SIMID-1.0-simid-variable-duration-valuevariableDuration must be "true" when present on a SIMID InteractiveCreativeFileSIMID-1.0-simid-mediafile-requiredLinear SIMID ad must include a video/audio <MediaFile> alongside the interactive creativeSIMID-1.0-simid-interactive-startLinear SIMID creative on VAST 4.2+ should include an interactiveStart tracking eventSIMID-1.0-simid-ssai-no-clientLinear SIMID creative with a Mezzanine but no progressive MediaFile cannot run in SSAI
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