Client-side validation on multi-tab layout

[johnnuman]

On a complex screen layout with multiple tabs, if the user tries to submit the data, it shows a validation error as expected and highlights all the fields with validation error as expected.
But if the fields failing the validation are on a different tab than the active one, there is no indication for the user to know why the submit is failing. Even if the user switches to other tabs, there is no indication of failing fields until he clicks the submit again.
Is this by design? Is there a way to improve this experience?