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# Error: $timeout:badprom
Non-$timeout promise

    `$timeout.cancel()` called with a promise that was not generated by `$timeout()`.

## Description

This error occurs when calling $timeout.cancel() with a promise that was not generated by the $timeout service. This can, for example, happen when calling then()/catch() on the returned promise, which creates a new promise, and pass that new promise to $timeout.cancel().

Example of incorrect usage that leads to this error:

    var promise = $timeout(doSomething, 1000).then(doSomethingElse);
    $timeout.cancel(promise);

To fix the example above, keep a reference to the promise returned by $timeout() and pass that to $timeout.cancel():

    var promise = $timeout(doSomething, 1000);
    var newPromise = promise.then(doSomethingElse);
    $timeout.cancel(promise);