peter
51e98bfc38
A tab left open across a release asked for a lazy chunk the server no longer has (prod: DownloadDialog 404 an hour after 0.89) and fell to the crash screen. `vite:preloadError` now reloads the tab once a minute at most; a second failure is let through to the error boundary, which now wraps every entry — the public /watch, /privacy and /terms pages crashed to a blank page.
45 lines
1.5 KiB
TypeScript
45 lines
1.5 KiB
TypeScript
// @vitest-environment jsdom
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import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
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const fire = (): Event => {
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const e = new Event("vite:preloadError", { cancelable: true });
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window.dispatchEvent(e);
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return e;
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};
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let uninstall = () => {};
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describe("a lazy chunk the server no longer has", () => {
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afterEach(() => uninstall());
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beforeEach(() => {
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vi.resetModules();
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sessionStorage.clear();
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});
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it("reloads the tab once, and says so to the error boundary", async () => {
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const { installStaleBuildReload, reloadingForNewBuild } = await import("./staleBuild");
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const reload = vi.fn();
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uninstall = installStaleBuildReload(reload);
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const e = fire();
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expect(e.defaultPrevented).toBe(true);
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expect(reload).toHaveBeenCalledTimes(1);
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expect(reloadingForNewBuild()).toBe(true);
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// The rest of the page's failed imports while the reload is under way: swallowed, no second reload.
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expect(fire().defaultPrevented).toBe(true);
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expect(reload).toHaveBeenCalledTimes(1);
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});
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it("lets the error through when the reload a moment ago did not help", async () => {
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sessionStorage.setItem("sf.staleBuildReload", String(Date.now() - 5_000));
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const { installStaleBuildReload, reloadingForNewBuild } = await import("./staleBuild");
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const reload = vi.fn();
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uninstall = installStaleBuildReload(reload);
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expect(fire().defaultPrevented).toBe(false);
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expect(reload).not.toHaveBeenCalled();
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expect(reloadingForNewBuild()).toBe(false);
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});
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});
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