# 3rd-party-error

**Repository Path**: mirrors_cypress-io/mirrors_cypress-io_3rd-party-error

## Basic Information

- **Project Name**: 3rd-party-error
- **Description**: Example showing 3rd party JavaScript error
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2020-12-09
- **Last Updated**: 2025-11-08

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# 3rd party JavaScript error

Illustrates how Cypress test runner cannot see 3rd party domain errors, see [cypress-io/cypress/issues/4717](https://github.com/cypress-io/cypress/issues/4717)

## Install and run

```shell
npm install
npm run cy:open
```

Example test in [cypress/integration/spec.js](cypress/integration/spec.js) tries to load `https://www.theguardian.com/uk`. While loading there is a JavaScript error thrown in a script loaded from some 3rd party domain, not from `theguardian.com` but from some other bundle it loads from elsewhere.

![Failed test](images/failing-test.png)

Notice that the error shown by Cypress is simply `Error:0` since Cypress has no access to 3rd party JavaScript coming from domains other than `theguardian.com`

Even if you click on the error itself, the DevTools console does not show the stack

![Missing stack](images/error.png)