Santhosh Janardhanan
de2d83092e
- Delete old Vite+Svelte frontend - Initialize new SvelteKit project with TypeScript - Configure Tailwind CSS v4 + DaisyUI - Implement JWT authentication with auto-refresh - Create login page with form validation (Zod) - Add protected route guards - Update Docker configuration for single-stage build - Add E2E tests with Playwright (6/11 passing) - Fix Svelte 5 reactivity with $state() runes Known issues: - 5 E2E tests failing (timing/async issues) - Token refresh implementation needs debugging - Validation error display timing
99 lines
3.8 KiB
JavaScript
99 lines
3.8 KiB
JavaScript
/**
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* Listens for uncaught exceptions coming from Happy DOM on the running Node process and dispatches error events on the Window instance.
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*/
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export default class BrowserExceptionObserver {
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static listenerCount = 0;
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observedWindows = [];
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uncaughtExceptionListener = null;
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uncaughtRejectionListener = null;
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/**
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* Observes the Node process for uncaught exceptions.
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*
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* @param window Browser window.
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*/
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observe(window) {
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if (this.observedWindows.includes(window)) {
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throw new Error('Browser window is already being observed.');
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}
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this.observedWindows.push(window);
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if (this.uncaughtExceptionListener) {
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return;
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}
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this.uncaughtExceptionListener = (error, origin) => {
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if (origin === 'unhandledRejection') {
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return;
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}
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let targetWindow = null;
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for (const window of this.observedWindows) {
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if (error instanceof window.Error || error instanceof window.DOMException) {
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targetWindow = window;
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break;
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}
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}
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if (targetWindow) {
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targetWindow.console.error(error);
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targetWindow.dispatchEvent(new targetWindow.ErrorEvent('error', {
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error: error,
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message: error.message
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}));
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}
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else if (process.listenerCount('uncaughtException') ===
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this.constructor.listenerCount) {
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// eslint-disable-next-line no-console
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console.error(error);
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// Exit if there are no other listeners handling the error.
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process.exit(1);
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}
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};
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// The "uncaughtException" event is not always triggered for unhandled rejections.
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// Therefore we want to use the "unhandledRejection" event as well.
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this.uncaughtRejectionListener = (error) => {
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let targetWindow = null;
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for (const window of this.observedWindows) {
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if (error instanceof window.Error || error instanceof window.DOMException) {
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targetWindow = window;
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break;
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}
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}
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if (targetWindow) {
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targetWindow.console.error(error);
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targetWindow.dispatchEvent(new targetWindow.ErrorEvent('error', {
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error: error,
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message: error.message
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}));
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}
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else if (process.listenerCount('unhandledRejection') ===
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this.constructor.listenerCount) {
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// eslint-disable-next-line no-console
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console.error(error);
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// Exit if there are no other listeners handling the error.
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process.exit(1);
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}
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};
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this.constructor.listenerCount++;
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process.on('uncaughtException', this.uncaughtExceptionListener);
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process.on('unhandledRejection', this.uncaughtRejectionListener);
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}
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/**
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* Disconnects observer.
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*
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* @param window Browser window.
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*/
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disconnect(window) {
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const index = this.observedWindows.indexOf(window);
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if (index === -1) {
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return;
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}
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this.observedWindows.splice(index, 1);
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if (this.observedWindows.length === 0 && this.uncaughtExceptionListener) {
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this.constructor.listenerCount--;
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process.off('uncaughtException', this.uncaughtExceptionListener);
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if (this.uncaughtRejectionListener) {
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process.off('unhandledRejection', this.uncaughtRejectionListener);
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}
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this.uncaughtExceptionListener = null;
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this.uncaughtRejectionListener = null;
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}
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}
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}
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//# sourceMappingURL=BrowserExceptionObserver.js.map
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