Package Exports
- element-qsa-scope
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Readme
Element QSA Scope 
Element QSA Scope lets you select elements relative to the current node. It
is a polyfill for :scope support within the selector methods
Element#querySelector, Element#querySelectorAll, Element#matches,
and Element#closest.
npm install element-qsa-scopeThe entire script is 341 bytes when minified and gzipped.
How it works
By default, selector methods return elements matching CSS selectors absolutely
from the document, similar to an element being matched with Element#matches.
Imagine the following document:
<ul>
<li><a>Link</a>
<ul>
<li><a>Sublink</a></li>
</ul>
</li>
</ul>
<script>li = document.querySelector('li')</script>Without :scope, the following selector will return the first link.
li.querySelector('li a'); // returns <a>Link</a>This is an example of how scoping is useful when traversing the DOM.
li.querySelector(':scope li a'); // returns <a>Sublink</a>Browser compatibility
| Browser | Native Support | Polyfill Support |
|---|---|---|
| Android | 4.4+ | 2.2 - 4.2 |
| Blackberry | ✘ | 7+ |
| Chrome | 27+ | 4 - 26 |
| Edge | ✘ | 12+ |
| Firefox | 32+ | 3.5 - 31 |
| Internet Explorer | ✘ | 8 - 11 |
| Opera | 15+ | 10 - 14 |
| Opera Mini | ✘ | 5+ |
| Safari (iOS) | 7+ | 3.2 - 6 |
| Safari (MacOS) | 6.2+ | 4 - 6 |
Test Results
Additional tests were run against the latest 3 versions of browsers, including common outliers such as Internet Explorer 8+ and Safari 6+.