missing 'backdrop-filter'

[braebo]

I noticed that both -webkit-backdrop-filter and backdrop-filter give me an error saying they're missing. Is this intentional?

[frenic]

No, they have existed for quite a while.

csstype/index.d.ts

Lines 290 to 303 in 8746e82

	/**
	* The **`backdrop-filter`** CSS property lets you apply graphical effects such as blurring or color shifting to the area behind an element. Because it applies to everything _behind_ the element, to see the effect you must make the element or its background at least partially transparent.
	*
	* **Syntax**: `none | <filter-function-list>`
	*
	* **Initial value**: `none`
	*
	* | Chrome | Firefox | Safari | Edge | IE |
	* | :----: | :-----: | :---------: | :----: | :-: |
	* | **76** | n/a | **9** _-x-_ | **17** | No |
	*
	* @see https://developer.mozilla.org/docs/Web/CSS/backdrop-filter
	*/
	backdropFilter?: Property.BackdropFilter | undefined;

csstype/index.d.ts

Lines 6846 to 6853 in 8746e82

	/**
	* The **`backdrop-filter`** CSS property lets you apply graphical effects such as blurring or color shifting to the area behind an element. Because it applies to everything _behind_ the element, to see the effect you must make the element or its background at least partially transparent.
	*
	* **Syntax**: `none | <filter-function-list>`
	*
	* **Initial value**: `none`
	*/
	WebkitBackdropFilter?: Property.BackdropFilter | undefined;