Exception handling is how your script survives unexpected events. Common Selenium exceptions include: NoSuchElementException (element not found), StaleElementReferenceException (element no longer attached to DOM), TimeoutException (wait condition not met), NoAlertPresentException (alert not found), InvalidElementStateException (element in invalid state for operation). Proper exception handling makes scripts robust and production-ready.
Without exception handling, one small hiccup crashes your entire test suite. With proper handling, the script knows what to do when something unexpected happens.
Your script intermittently fails with `StaleElementReferenceException`. What is happening and how do you resolve it?