diff --git a/packages/backend/src/server/csp.ts b/packages/backend/src/server/csp.ts
index 1797d93707..45b37fbd06 100644
--- a/packages/backend/src/server/csp.ts
+++ b/packages/backend/src/server/csp.ts
@@ -44,7 +44,6 @@ export function generateCSP(hashedMap: Map<string, CSPHashed>, options: {
         ['style-src-attr', ['\'self\'', '\'unsafe-inline\'']],
         ['script-src', ['\'self\'', '\'wasm-unsafe-eval\'', ...scripts]],
         ['object-src', ['\'none\'']],
-        ['frame-src', ['\'none\'']],
         ['base-uri', ['\'self\'']],
         ['form-action', ['\'self\'']],
         ['child-src', ['\'self\'']],