2D canvas opacity #34
Description
This GitHub issue is for collecting web developer signals for 2D canvas opacity.
The optional alpha parameter of a 2D canvas's getContext() method sets whether the canvas has an alpha transparency channel. If set to false, then this permits the browser to optimize compositing for an opaque canvas.
Browser support
- Chrome 32 (Jan 14, 2014)
- Chrome Android 32 (Jan 15, 2014)
- Edge 79 (Jan 15, 2020)
- Firefox 30 (Jun 10, 2014)
- Firefox for Android 30 (Jun 10, 2014)
- Safari: not supported
- Safari on iOS: not supported
Give us feedback
If you're pressed for time, but you want this feature to be available in all browsers, please give this issue a thumbs up 👍 reaction.
However, a much better guide for us is to know how you'd use this feature, and what you're having to do in the meantime. This helps us judge the priority versus other features.
Copy the template below in a comment, and add the details that matter to you.
## What I want to do with this feature
<!-- Add your specific use-cases, even if they seem obvious to you. -->
## What I'm having to do in the meantime
<!--
Are you having to use another feature instead, a polyfill, or is it blocking you completely?
Why are the alternatives worse than using this feature?
-->All comments are expected to adhere to the Code of Conduct.
Learn more
You can learn more about this feature here:
