1 files changed, 20 insertions, 1 deletions
diff --git a/packages/taler-util/src/logging.ts b/packages/taler-util/src/logging.ts
index 9e6a265b8..17bb184f7 100644
--- a/packages/taler-util/src/logging.ts
+++ b/packages/taler-util/src/logging.ts
@@ -14,7 +14,6 @@
  TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
  */
 
-
 /**
  * Check if we are running under nodejs.
  */
@@ -38,6 +37,26 @@ const byTagLogLevel: Record<string, LogLevel> = {};
 
 let nativeLogging: boolean = false;
 
+// from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error/toString
+Error.prototype.toString = function () {
+  if (
+    this === null ||
+    (typeof this !== "object" && typeof this !== "function")
+  ) {
+    throw new TypeError();
+  }
+  let name = this.name;
+  name = name === undefined ? "Error" : `${name}`;
+  let msg = this.message;
+  msg = msg === undefined ? "" : `${msg}`;
+
+  let cause = "";
+  if ("cause" in this) {
+    cause = `\n Caused by: ${this.cause}`;
+  }
+  return `${name}: ${msg}${cause}`;
+};
+
 export function getGlobalLogLevel(): string {
   return globalLogLevel;
 }