Why are solutions never posted in these forums!!
I cant understand why someone has not found a solution to this. I am in the same boat. I have built my dev site multiple times, usually it is just an issue with the production url set as the main url. Anyways, this is not resolving it. I have already tried both ideas that were mentioned. Redirect www and setting the live url. Please someone upload their fix. After 4 months, someone must of figured it out.
Currently running 9.3 Multistore on 5 sites.