Default OCSP round trip for GigaPdfDoc.signLtv: POST the DER
OCSPRequest to url as application/ocsp-request and return the raw
OCSPResponse body. No SSRF allow-listing — the URL comes from the
certificate's AIA extension; pass revocationFetch to restrict it.
Default OCSP round trip for GigaPdfDoc.signLtv: POST the DER
OCSPRequesttourlasapplication/ocsp-requestand return the rawOCSPResponsebody. No SSRF allow-listing — the URL comes from the certificate's AIA extension; passrevocationFetchto restrict it.