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WebAudio: OscillatorOptions.periodicWave is not nullable

Category

Multimedia

Type

No developer-visible change

Status

Enabled by default (Chrome 90)

Intent stage

Start prototyping

Summary

It is no longer possible to set the periodicWave member of OscillatorOptions to null. The WebAudio spec doesn't allow this, so we're aligning Chrome with the spec and also Firefox, which has implemented this correctly for 4 years.

Motivation

Align with spec

Standards & signals

• Specification: https://webaudio.github.io/web-audio-api/#dictdef-oscillatoroptions
• Firefox: Shipped/Shipping — Linked to the Firefox commit that has the correct IDL for this feature.
• Safari: No signal
• Web developers: No signals
• Tracking bug: https://crbug.com/1093016

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