Merge pull request #498 from MITx/feature/victor/domain-specific-caching

Separate caches per-domain-name

common/djangoapps/util/cache.py

@@ -9,6 +9,7 @@ from functools import wraps
 
 from django.core import cache
 
+
 # If we can't find a 'general' CACHE defined in settings.py, we simply fall back
 # to returning the default cache. This will happen with dev machines.
 try:
@@ -41,7 +42,10 @@ def cache_if_anonymous(view_func):
     def _decorated(request, *args, **kwargs):
         if not request.user.is_authenticated():
             #Use the cache
-            cache_key = "cache_if_anonymous." + request.path
+            # same view accessed through different domain names may
+            # return different things, so include the domain name in the key.
+            domain = str(request.META.get('HTTP_HOST')) + '.'
+            cache_key = domain + "cache_if_anonymous." + request.path
             response = cache.get(cache_key)
             if not response:
                 response = view_func(request, *args, **kwargs)