Report errors to server

web/static/favicon/site.webmanifest

@@ -3,12 +3,12 @@
     "short_name": "",
     "icons": [
         {
-            "src": "/android-chrome-192x192.png",
+            "src": "/static/favicon/android-chrome-192x192.png",
             "sizes": "192x192",
             "type": "image/png"
         },
         {
-            "src": "/android-chrome-512x512.png",
+            "src": "/static/favicon/android-chrome-512x512.png",
             "sizes": "512x512",
             "type": "image/png"
         }

web/static/js/reporter.js

@@ -0,0 +1,16 @@
+const REPORTER_ID = crypto.randomUUID();
+
+window.addEventListener("error", async (ev) => {
+    await fetch("/report", {
+        method: "POST",
+        body: JSON.stringify({
+            reporterId: REPORTER_ID,
+            url: window.location.href,
+            relativeTimestamp: ev.timeStamp,
+            errorMessage: ev.message,
+            errorLine: ev.lineno,
+            errorFile: ev.filename,
+            errorType: ev.type,
+        }),
+    });
+});