Postman returns "Error: passed a null parameter" when using Client Certificate

Question

I requested certificate from my CA (on a MAC) then exported the private key as p12 file. In Postman preferences I configured Client Certificates by PFX file/passphrase:

I know it's reading it since I get incorrect passphrase error if set a wrong one.

Once it's set, I get error shown below in Postman Console: "Error: passed a null parameter" and the request is not being sent to server -- any ideas?

score 1 · Answer 1 · answered Apr 28 '22 at 20:08

1

I got it to work after exporting from KeyChain both the "private key" and "certificate" together to a p12 file.

answered Apr 28 '22 at 20:08

Ben

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Can you elaborate the steps what you have done so that you were able to solve it in postman ? – Kiran Joshi Jan 16 '23 at 09:28
Thank you Ben! had the same problem from curl but this fixed it – T. Webster Feb 27 '23 at 21:41

Postman returns "Error: passed a null parameter" when using Client Certificate

1 Answers1