Update index.html

index.html

@@ -535,7 +535,7 @@
                 }
             });
             function checkAddress() {
-                if ( !isValidTaprootAddress( $( '.address' ).value ) ) {
+                if ( !isValidTaprootAddress( $( '.address' ).value ) && $( '.address' ).value ) {
                     $( '.address' ).style.backgroundColor = "#ff5252";
                     $( '.address' ).style.border = "2px solid red";
                     $( '.type_of_address' ).style.border = "1px solid white";