Proper error handling for OCR

src/vision.ts

@@ -12,16 +12,31 @@ export class Vision {
 	 */
 	ocr(path: string): AbortablePromise<string | null> {
 		let worker: any;
+		let reject: (err: any) => void;
+
+		const handler = (err: Error) => {
+			if(err.stack?.includes('tesseract.js')) {
+				process.off('uncaughtException', handler);
+				reject?.(err);
+				return;
+			}
+			throw err;
+		};
+		process.on('uncaughtException', handler);
+
 		const p = (async () => {
 			worker = await createWorker(this.ai.options.ocr || 'eng', 2, {cachePath: this.ai.options.path});
-			worker.setParameters({}).catch(() => {}); // force error handler attachment
 			return await new Promise<string | null>((res, rej) => {
-				worker.on?.('error', rej); // catch worker-level throws
+				reject = rej;
 				worker.recognize(path)
 					.then(({data}: any) => res(data.text.trim() || null))
 					.catch(rej);
 			});
-		})().finally(() => worker?.terminate());
+		})().finally(() => {
+			process.off('uncaughtException', handler);
+			worker?.terminate();
+		});
+
 		return Object.assign(p, {abort: () => worker?.terminate()});
 	}
 }