Here is an interesting bug that I was able to replicate. Google SSL search and reportedly Google.com search yesterday, was/is not working on Apple's Safari 5 web browser.
We have some complaints about it at Google Web Search Help:
So I am running Safari 5 on my MacBook Pro and just recently when I type something into the Google search bar and hit enter, the Google search bar page reloads with no results. I type the same thing into the search bar and hit enter...and then it finds some results for me. This is quite annoying to have to type in what I am searching for twice in order to do a search. If this bug is not fixed I will be switching to another search engine. I hope that I do not have to do that.
Googler Sarah H. chimed in and said:
Thanks for reporting this bug and for providing the details.
As we look into it will you please reply back with the URL you get after the unsuccessful search but before the successful second attempt? That will be helpful because I am not able to reproduce what you're experiencing.
I was personally able to replicate the issue using Google SSL search in Safari 5. Here is a screen cast of that:
Forum discussion at Google Web Search Help.