Custom action timing in synthetic browser

[Bert_VanderHeyd]

We want to time a login flow but exclude the complete loading of the first page...

Standard login = provide credentials and press "Login".
After several redirects (SAML), the first page is loaded and the action only stops when that page is rendered.

Via the browser tools we see the several redirects passing by and actually we want to measure the time of the last 302 redirect with the SAML response.

How can this be achieved?

[ChadTurner]

@Bert_VanderHeyd did you have any luck with this? 

[Bert_VanderHeyd]

No, actually no idea where to start.

[HannahM]

What do you see in the waterfall for this? Redirect time is not part of the navigation timing API, so that data is not sent to us and I think you should be able to just see what you are wanting.