• Success Criterion 1.2.2
  • Conformance level A

DRM-Locked Player That Blocks Captions From Displaying

1.2.2 — Captions (Prerecorded)

Scenario

Setting

A survey tool's question builder

What’s wrong

DRM/player configuration that blocks user caption rendering entirely.

Example 

<div class="question-media">
  <!-- DRM player strips all track elements and offers no caption UI
       in its custom skin -->
  <drm-player src="encrypted://stockvideo/48213" disable-native-controls="true"></drm-player>
</div>

Why it matters

A deaf survey respondent answering a video-based question can't turn on captions at all, since the DRM player was configured to block every caption path, native or custom.

How to test

Try turning captions on in the player: if DRM or player settings prevent the caption control from working at all, it fails.

How to fix

When licensing a DRM-protected player, confirm it supports caption rendering before rolling it out; some vendor configurations disable captions by default.

<div class="question-media">
  <drm-player src="encrypted://stockvideo/48213" caption-track="/captions/48213.vtt" show-cc-button="true"></drm-player>
</div>

Outcome

A deaf respondent turns on captions through the DRM player's CC button and answers the video question accurately.

Who is affected

Deaf and hard-of-hearing respondents are unable to understand the video prompt, and may answer the question incorrectly or abandon it.

Learn more

Related scenarios