public static interface HttpConfiguration.HeadersProvider
Thread-safety: The implementation must be thread-safe. The callback method will be invoked simultaneously on different threads if there are simultaneous vAPI invocations with this configuration.
Note that headers with "vapi-ctx-" prefix and the Accept-Language
header are declared with precedence of the
setting. When the same header names are provided both through the
ExecutionContext.ApplicationData and the
HttpConfiguration.HeadersProvider, the values from the former will be neglected
in favor of the latter.
null, but the headers cannot contain