intercept
open override fun intercept(chain: ERROR CLASS: Symbol not found for Interceptor.Chain): ERROR CLASS: Symbol not found for Response
Adds the X-Callback-Url header when a callback URL is configured and the request targets a transaction-initiation endpoint; otherwise forwards the request unchanged.
Return
The response after conditionally adding the callback header.
Parameters
chain
The interceptor chain.
Throws
If an I/O error occurs.