URL: https://github.com/webcomponents/webcomponentsjs

License: BSD

License File: https://github.com/webcomponents/webcomponentsjs/blob/master/LICENSE.md

Description:

Shadow DOM-related polyfills

Local Modifications:

- Stripped to only perform necessary Shadow CSS polyfilling.

- Shortened License based on intended functionality from build pipeline.

- Added feature switches that allows certain codepaths to be

dead-code-eliminated: `allowArraySelectors` and `isIeSupported`

- All exported functions were originally part of an object named `ShadowCSS`.

We instead export them as plain functions allow them to be

dead-code-eliminated, and for their names to be mangled.

This also involves changing references to each function from `this.x()` to

just `x()`

- Renamed `scopeSelector()` to `doScopeSelector()` since the original name

conflicts with argument `scopeSelector` after removing `this.`.

- Removed a `strict` argument before `opt_transformer` in `doScopeSelector`

to be replaced with the constant value for `strictStyling`.