diff --git a/server.py b/server.py
index 0fd2e49e34bf..fca5050bd7ce 100644
--- a/server.py
+++ b/server.py
@@ -174,7 +174,7 @@ async def block_external_middleware(request: web.Request, handler):
         else:
             response = await handler(request)
 
-        response.headers['Content-Security-Policy'] = "default-src 'self'; script-src 'self' 'unsafe-inline' blob:; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob:; font-src 'self'; connect-src 'self'; frame-src 'self'; object-src 'self';"
+        response.headers['Content-Security-Policy'] = "default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval' blob:; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob:; font-src 'self'; connect-src 'self'; frame-src 'self'; object-src 'self';"
         return response
 
     return block_external_middleware