diff --git a/src/taskWebServer.cpp b/src/taskWebServer.cpp
index bcd2823..1365ee1 100644
--- a/src/taskWebServer.cpp
+++ b/src/taskWebServer.cpp
@@ -38,8 +38,12 @@ void sendCacheHeader() { server.sendHeader("Cache-Control", "max-age=3600"); }
 void sendGzipHeader() { server.sendHeader("Content-Encoding", "gzip"); }
 
 String jsonEscape(String s){
-  s.replace("\"", "\\\"");
-  s.replace("\\", "\\\\");
+    s.replace("\\", "\\\\");
+    s.replace("\"", "\\\"");
+    s.replace("\x7f", "\\\x7f");
+    for(char i = 0; i < 0x1f; i++){
+        s.replace(String(i), "\\" + String((char)i));
+    }
   return s;
 }