[Feature Request]: Error.cause

[williazz]

Please provide your feature request

Errors are often rethrown with property cause to provide additional context. RUM JSErrors should include this as a standard field.

From documentation

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error/cause

It is sometimes useful to catch an error and re-throw it with a new message. In this case you should pass the original error into the constructor for the new Error, as shown

// Cleanup title
try {
  connectToDatabase();
} catch (err) {
  throw new Error("Connecting to database failed.", { cause: err });
}

// With structured cause
function makeRSA(p, q) {
  if (!Number.isInteger(p) || !Number.isInteger(q)) {
    throw new Error("RSA key generation requires integer inputs.", {
      cause: { code: "NonInteger", values: [p, q] },
    });
  }
  if (!areCoprime(p, q)) {
    throw new Error("RSA key generation requires two co-prime integers.", {
      cause: { code: "NonCoprime", values: [p, q] },
    });
  }
  // rsa algorithm…
}