Add bugsUrl

src/error/modern/handler.js

@@ -3,13 +3,21 @@ import mergeErrorCause from 'merge-error-cause'
 // Error handler that normalizes an error, merge its `error.cause` and ensure
 // its type is among an allowed list of types.
 // Otherwise, assign a default SystemError type.
-export const onErrorHandler = function (ErrorTypes, SystemError, error) {
+export const onErrorHandler = function (
+  { ErrorTypes, SystemError, bugsUrl },
+  error,
+) {
   const errorA = mergeErrorCause(error)
 
   if (ErrorTypes.some((ErrorType) => errorA instanceof ErrorType)) {
     return errorA
   }
 
-  const systemError = new SystemError('', { cause: errorA })
+  const systemErrorMessage = getSystemErrorMessage(bugsUrl)
+  const systemError = new SystemError(systemErrorMessage, { cause: errorA })
   return mergeErrorCause(systemError)
 }
+
+const getSystemErrorMessage = function (bugsUrl) {
+  return bugsUrl === undefined ? '' : `Please report this bug at: ${bugsUrl}`
+}

src/error/modern/main.js

@@ -21,13 +21,13 @@ import {
 //  - Any browsers: `stacktrace.js`
 export const modernErrors = function (errorNames, opts) {
   validateErrorNames(errorNames)
-  const { onCreate } = getOpts(opts)
+  const { onCreate, bugsUrl } = getOpts(opts)
   const SystemError = createSystemError()
   const ErrorTypes = createErrorTypes(errorNames, onCreate)
-  const onError = onErrorHandler.bind(
-    undefined,
-    Object.values(ErrorTypes),
+  const onError = onErrorHandler.bind(undefined, {
+    ErrorTypes: Object.values(ErrorTypes),
     SystemError,
-  )
+    bugsUrl,
+  })
   return { ...ErrorTypes, onError }
 }