diff --git a/src/runtime/nitro/plugins/40-cspSsrNonce.ts b/src/runtime/nitro/plugins/40-cspSsrNonce.ts
index 95b75ec3..8f0cacfd 100644
--- a/src/runtime/nitro/plugins/40-cspSsrNonce.ts
+++ b/src/runtime/nitro/plugins/40-cspSsrNonce.ts
@@ -6,7 +6,7 @@ const LINK_RE = /<link\b([^>]*?>)/gi
 const NONCE_RE = /nonce="[^"]+"/i
 const SCRIPT_RE = /<script\b([^>]*?>)/gi
 const STYLE_RE = /<style\b([^>]*?>)/gi
-const QUOTE_MASK_RE = /"([^"]*)"/g
+const QUOTE_MASK_RE = /"((?:[^"\\]|\\.)*)"/g
 const QUOTE_RESTORE_RE = /__QUOTE_PLACEHOLDER_(\d+)__/g
 
 function injectNonceToTags(element: string, nonce: string) {