Initial curated Unraid-AppOps-Gateway source from 3bd6f6fee310125bfbb4d4650389a817f498724d

src/lib/operatorError.ts

@@ -0,0 +1,16 @@
+const invalidApiResponse = /unexpected token|doctype|not valid json|json parse|syntaxerror/i;
+const htmlResponse = /<html|<!doctype|<body/i;
+
+export const formatOperatorError = (error: unknown, fallback: string): string => {
+  const raw = error instanceof Error ? error.message : String(error || "");
+  const normalized = raw.trim();
+
+  if (!normalized) return fallback;
+  if (invalidApiResponse.test(normalized) || htmlResponse.test(normalized)) {
+    return `${fallback} De backendbron gaf geen geldige API-respons.`;
+  }
+  if (normalized.length > 240) {
+    return `${normalized.slice(0, 237)}...`;
+  }
+  return normalized;
+};