diff --git a/src/renderer/index.html b/src/renderer/index.html
index c092132b..b425090a 100644
--- a/src/renderer/index.html
+++ b/src/renderer/index.html
@@ -7,7 +7,7 @@
+ content="default-src 'self'; connect-src *; script-src 'self' *; worker-src 'self' blob:; style-src 'self' 'unsafe-inline' *; font-src 'self' data: *; img-src 'self' data:" />