What is HTTP REST request timeout setting and how can I extend it?

Question

When I execute a script using HTTP REST, I got 408 Request Timeout and could not receive a return value.
What is the HTTP REST request timeout setting value and how can I extend it?

Answer

Specification
HULFT Square does not explicitly set a time for the request timeout of HTTP REST.
It is also not possible for users to set it.

About the Error
Request timeout occurs if a waiting limit for a response to a request is set on the client side which invokes HULFT Square REST job.

Solution
Extend the upper limit of the request timeout on the client side that invokes HTTP REST.