302 vs. a href="nofollow"

[kynop]

we came across one thing the we did not asked to programm by our intention.

we have a magento shop and on the produktpage we have those "compare" buttons. these link have a session id and the follow a 302 back onto the same page.

so i beleive the idea is that google will just not follow 302s and thats it.

so my questions is:

is this right what we beleive

if so why is a 302 better compared to a a href="nofollow" ???

[AdamThompson]

302 redirects mean the page has temporarily moved. It sounds like the pages are only temporary, so that would be the correct thing to use. You could also use nofollow or canonical tags, too.

A nofollow won't stop the page from getting indexed if it is linked to from elsewhere on the web.

[kynop]

Thanx for the great answere, so the best is probably to leave it as it is.

I just found it out because Screaming Frog runs into a loop, because it follows 302s.

So i just put this url string which guides into the 302 into the robots.txt while i scan with seo frog and turn it off afterwards again.

thanx!