How to configure executiontimeout in servicestack?

I tried to use

However it doesn’t seem to work.
Searching the internet it seems that this setting does not apply to the MVC async framework, is that what service stack is using under the hood ? What is the correct way to set an execution timeout on http calls to SStack endpoints ?

thank you

The way to specify request limits in any ASP.NET Web App is to specify httpRuntime or system.webServer limits configuration in your Web.config. ServiceStack doesn’t impose any technical limits on itself, all restrictions are from ASP.NET/IIS.