- it is possible to run monkey testing in the front-end
- if an error occurred during the monkey test, it is easy possible to see what the error of the test was
- there is a nightly jenkins job that performs the monkey testing
While developing a web application, did you anticipate uncommon user interactions? Did you manage to detect and patch all memory leaks? If not, the application may break sooner or later. If n random actions can make an application fail, it's better to acknowledge it during testing, rather than letting users discover it.
One possible option: https://github.com/marmelab/gremlins.js