diff --git a/src/quorum/base.py b/src/quorum/base.py
index 76ba6601..85f756cc 100644
--- a/src/quorum/base.py
+++ b/src/quorum/base.py
@@ -96,7 +96,7 @@
 """ The default value to be used in the "Access-Control-Allow-Methods"
 header value, this should not be too restrictive """
 
-CONTENT_SECURITY = "default-src * ws://* wss://* data: blob:; script-src * 'unsafe-inline' 'unsafe-eval'; style-src * 'unsafe-inline'; frame-src * 'unsafe-inline' 'unsafe-eval';"
+CONTENT_SECURITY = "default-src * ws://* wss://* data: blob:; script-src * 'unsafe-inline' 'unsafe-eval'; style-src * 'unsafe-inline';"
 """ The default value to be used in the "Content-Security-Policy"
 header value, this should not be too restrictive """