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You'll need to keep in mind that `cy` commands are collected and executed *after* your test's JavaScript has run. So in your case you'd need to run the `if` inside a callback with access to the `cy.xpath()` result beforehand.

So for example, this hypothetical would **not** work:
```js
// invalid
if(cy.location('pathname') == 'home') {
  cy.get('.startButton').click()
}
```

You'd want to do this instead:
```js
// valid
cy.location('pathname').then((pathname) => {
  if(pathname == 'home') {
    cy.get('.startButton').click()
  }
})
```

But Gleb is right, avoid creating tests that have an uncertain path.