Should I add rel-canonical tag with 302 redirect?

[whitneywn]

Hi guys, I need help on the 302 redirect issue. This is my case:

My developer help me 302 redirected Page A to Page B  (the content of both two page are 99% similar).

^In this situation - Google should index and rank Page A based on Page A content, right?

But then when I inspect the Page A url in Google Search Console, it says that the canonical I set and the canonical Google declared is pointing to Page B.

Later when i check the Google search result, Page B is ranked instead of Page A.

Question:
1. Is rel=canonical and redirect 2 different thing? We can set them separately, right?
2. In the above situation, the canonical tag of Page A should be set as blank or set as self-canonical instead of pointing to Page B?

Sorry for my bad English and thanks a lot for your help!