prod/service-worker-28ddbc7ef7a575da0539a0f05f4bfdae.js
function CustomError (message, cause) {
  Error.call(this)
  if (Error.captureStackTrace)
    Error.captureStackTrace(this, arguments.callee)
  init.call(this, 'CustomError', message, cause)
}
function CustomError (message, cause) {
  Error.call(this)
  if (Error.captureStackTrace)
    Error.captureStackTrace(this, arguments.callee)
  init.call(this, 'CustomError', message, cause)
}
function CustomError ( message , cause ) { Error . call ( this ) if ( Error . captureStackTrace ) Error . captureStackTrace ( this , arguments . callee ) init . call ( this , 'CustomError' , message , cause ) }
generic prototype, not intended to be actually used - helpful for `instanceof`
generic prototype not intended to be actually used - helpful for instanceof