Merge pull request #3862 from davidfischer/sustain-cors-hotfix

Another CORS hotfix for the sustainability API

readthedocs/core/signals.py

@@ -20,6 +20,7 @@ WHITELIST_URLS = [
     '/api/v2/footer_html',
     '/api/v2/search',
     '/api/v2/docsearch',
+    '/api/v2/sustainability',
 ]
 
 
@@ -46,6 +47,10 @@ def decide_if_cors(sender, request, **kwargs):  # pylint: disable=unused-argumen
         if request.path_info.startswith(url):
             valid_url = True
 
+        # Don't do domain checking for this API for now
+        if request.path_info.startswith('/api/v2/sustainability'):
+            return True
+
     if valid_url:
         project_slug = request.GET.get('project', None)
         try: