When the response packet has no header information, an error message is triggered.

[King-Mr]

When some poc response packages do not have a response header, the following error is raised.

The response package is as follows:

[tarunKoyalwar]

@King-Mr , as of now we only support unsafe or raw request , and from the screenshot you have shared it is not a valid response as per RFCs , so go stdlib is unable to parse the response , it might be good idea to use achieve the same using javascript protocol where you don't parse the response and directly match on output data

see: https://github.com/projectdiscovery/nuclei/blob/dev/integration_tests/protocols/javascript/net-https.yaml