Website cancel is missed by the 3.0 front end code

[gordonwatts]

As a user I'd like to submit a transform from my request, go to the web, click the cancel button. And when that happens, I expect the script to crash with a "canceled" error or similar.

Repro

1. Submit a SX query of any kind using this library (the 3.0 version).
2. Go to the web site and load up your dashboard
3. Click the cancel button

Expected Action: The script that is waiting on the run should crash very quickly.

What currently happens: the script continues to run forever.

[ponyisi]

@ketan96-m something you can look at?

[ponyisi]

Do we know if the fact of the cancellation is correctly added to the returned TransformStatus object?