Revert "fix string parameter"

This reverts commit f888f25

Author: MrSpoocy

lib/utils.js

@@ -36,11 +36,7 @@ var CSInterface = /** @class */ (function (_super) {
                 case 'undefined':
                     return '"null"';
                 case 'string':
-                    var str = JSON.stringify(value);
-                    if (str.substr(0, 1) !== '"' || str.substr(-1) !== '"') {
-                        throw TypeError("Unbekannter JSON String: \"" + str + "\"");
-                    }
-                    return "\"\\" + str.substr(0, str.length - 1) + "\\\"\"";
+                    return JSON.stringify(value);
                 case 'number': {
                     if (Number.isNaN(value) || Infinity === value) {
                         return 0;