Grabbed dndbeyond's source code

```
~/go/bin/sourcemapper -output ddb -jsurl https://media.dndbeyond.com/character-app/static/js/main.90aa78c5.js
```

ddb_main/tools/js/Shared/utils/Error/constants.ts

@@ -0,0 +1 @@
+export let NO_ERROR_CODE = "NO_ERROR_CODE";

ddb_main/tools/js/Shared/utils/Error/utils.ts

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+import { LogMessageType } from "@dndbeyond/character-rules-engine/es/logger/constants";
+
+import { ErrorClientConfig, ErrorCustomTags } from "./typings";
+
+// Historical note: This logging util used to be more fully featured,
+// when we integrated with Sentry.io. Now it just logs to the
+// console if debug is enabled.
+
+let clientConfig: ErrorClientConfig | null = null;
+
+/**
+ * Logs an exception when debug is enabled in the client config
+ * @param error The error object
+ * @param contextData Any context data related to the exception
+ * @param customTags
+ */
+export function dispatchException(
+  error: Error,
+  contextData: Record<string, any> | null = null,
+  customTags: ErrorCustomTags | null = null
+): void {
+  if (clientConfig?.debug) {
+    // eslint-disable-next-line no-console
+    console.error("EXCEPTION", error, contextData, customTags);
+  }
+}
+
+/**
+ * Logs a message when debug is enabled in the client config
+ * @param message The message to send
+ * @param contextData Any context data related to the message
+ * @param customTags
+ * @param severity
+ */
+export function dispatchError(
+  message: string,
+  contextData: Record<string, any> | null,
+  customTags: ErrorCustomTags | null,
+  severity: LogMessageType
+): void {
+  if (clientConfig?.debug) {
+    // eslint-disable-next-line no-console
+    console.error(severity, message, contextData, customTags);
+  }
+}
+
+/**
+ * Initializes client error config
+ * @param config config object
+ */
+export function initReporting(config: ErrorClientConfig): void {
+  clientConfig = config;
+}
+
+/**
+ * Reports a React error to logger
+ * @param error The error to report
+ * @param componentInfo Information about the component in which the error occurred
+ */
+export function reportReactError(error: Error, componentInfo: any): void {
+  dispatchException(error, {
+    componentInfo,
+  });
+}