1494806 - Exact constraints containing string arrays, e.g. {deviceId: {exact:['id']}} are treated as ideal.

Status: RESOLVED FIXED

(Core :: WebRTC: Audio/Video, defect, P2)

Description

[Jan-Ivar Bruaroey [:jib] (needinfo? me)]

Found this bug as a result of improving our constraints logging in bug 1494498.

STR:
 1. Open https://jsfiddle.net/jib1/4wp15e6u/ which does this:

    await navigator.mediaDevices.getUserMedia({video: {deviceId: {exact: ["boo"]}}});

Expected result:
  OverconstrainedError

Actual result:
  Succeeds in spite of unknown deviceId.

Workaround:
  Avoid arrays:
    await navigator.mediaDevices.getUserMedia({video: {deviceId: {exact: "boo"}}});

Comment 1

[Jan-Ivar Bruaroey [:jib] (needinfo? me)]

Attachment: Bug 1494806 - Fixed exact string constraints w/arrays, e.g. {deviceId: {exact:['id']}}, were treated as ideal. r?pehrsons

Comment 2

[Andreas Pehrson [:pehrsons]]

Comment on attachment 9012750 [details]
Bug 1494806 - Fixed exact string constraints w/arrays, e.g. {deviceId: {exact:['id']}}, were treated as ideal. r?pehrsons

Andreas Pehrson [:pehrsons] has approved the revision.

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/7b19326c79fb
Fixed exact string constraints w/arrays, e.g. {deviceId: {exact:['id']}}, were treated as ideal. r=pehrsons

Comment 4

[Arthur Iakab [arthur_iakab]]

https://hg.mozilla.org/mozilla-central/rev/7b19326c79fb