willReadFrequently

The optional willReadFrequently parameter of a canvas's getContext() method permits the browser to optimize for frequent getImageData() calls by avoiding hardware acceleration. Also known as multiple readback.

Baseline Status: Achieved Newly Available on Sep 16, 2024 across core engines.

Desktop Browser Engine Support

Google Chrome

99

Supported

Mozilla Firefox

28

Supported

Apple Safari

18

Supported

Microsoft Edge

99

Supported

Mobile Browser Engine Support

Chrome Android

99

Firefox Android

28

Safari iOS

18

Specifications and References

Specification ↗ Feature XML ↗

MDN Browser Compat Data Keys:

api.HTMLCanvasElement.getContext.2d_context.options_willReadFrequently_parameter ↗