Merge pull request #1299 from cisagov/rh/476-federalist-cors

Issue #476: Adding CORS headers for cloud.gov site pages

src/registrar/config/settings.py

@@ -303,7 +303,7 @@
 # Sets clients that allow access control to manage.get.gov
 # TODO: remove :8080 to see if we can have all localhost access
 CORS_ALLOWED_ORIGINS = ["http://localhost:8080", "https://beta.get.gov"]
-
+CORS_ALLOWED_ORIGIN_REGEXES = [r"https://[\w-]+\.sites\.pages\.cloud\.gov"]
 
 # Content-Length header is set by django.middleware.common.CommonMiddleware