sneak
cb44e9903d
Firefox gives an extension page in a private window locks of its own. A popup there could save between the background's read and its write of the stored record, and undo a network switch the background had saved. manifest/firefox.json now sets "incognito": "not_allowed", so Firefox never runs AutistMask in a private window. tests/manifest.test.js pins the key. The README and five code comments no longer describe a private-window exception to the lock. Model: opus-5-5
27 lines
1001 B
JavaScript
27 lines
1001 B
JavaScript
// `navigator.locks` for the unit tests, which run on node, where there is none.
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//
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// One lock per name: granted in the order it was asked for, and let go when
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// the callback settles, whether it resolved or rejected. That is what the
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// browser's own does for the one call the extension makes,
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// `navigator.locks.request(name, callback)`. Every module a test file loads
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// shares it, as the extension's background and its pages share the browser's
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// (README, "Stored state and its version").
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//
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// Run before each test file by `setupFiles` in package.json.
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// For each name, a promise that settles once the last request for it has
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// let the lock go.
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const released = new Map();
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function request(name, callback) {
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const previous = released.get(name) || Promise.resolve();
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const result = previous.then(() => callback({ name, mode: "exclusive" }));
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released.set(
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name,
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result.catch(() => {}),
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);
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return result;
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}
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globalThis.navigator = { locks: { request } };
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