I am re-posting this question as really want to complete this pset and cant find a solution.
Have managed most of the problem set without a working map but now need to test markers.
After running flask the map shows briefly before i get “opps something went wrong”. I have checked the java console and am having the “RefererNotAllowedMapError”
I have tried update50 and re-downloading the source code (with provided api key) but result is the same. I'm not sure this is down to not being on the referrer list as from reading documentation i assume cs50 have used a wildcard to allow all ulrs ie. "http://ide50-*" or alike.
my ulr is http://ide50-USERNAME.c9users.io:8080/
Really would like to complete this problem set so if anyone has the same issue and/ or a fix please let me know.