mirror of
https://github.com/react/react-native-devtools-frontend.git
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Nikolay Vitkov
2a1b3b34b1
Stylelint v16 deprecated CJS so I moved our lint script to ESM, and fixed all the deprecation warning. The only place I needed to silence them were tests, as we import CJS there. Bug: none Change-Id: Iae4d2df76c855a9738b774a2d035f22509770215 Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6138610 Commit-Queue: Nikolay Vitkov <nvitkov@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
37 lines
916 B
JavaScript
37 lines
916 B
JavaScript
/**
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* Get unit from value node
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*
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* Returns `null` if the unit is not found.
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*
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* @param {string} urlString
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* @returns {string | null}
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*/
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export default function getSchemeFromUrl(urlString) {
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let protocol = null;
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try {
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protocol = new URL(urlString).protocol;
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} catch {
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return null;
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}
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if (protocol === null || typeof protocol === 'undefined') {
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return null;
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}
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const scheme = protocol.slice(0, -1); // strip trailing `:`
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// The URL spec does not require a scheme to be followed by `//`, but checking
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// for it allows this rule to differentiate <scheme>:<hostname> urls from
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// <hostname>:<port> urls. `data:` scheme urls are an exception to this rule.
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const slashIndex = protocol.length;
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const expectedSlashes = urlString.slice(slashIndex, slashIndex + 2);
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const isSchemeLessUrl = expectedSlashes !== '//' && scheme !== 'data';
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if (isSchemeLessUrl) {
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return null;
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}
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return scheme;
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}
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