1 files changed, 20 insertions, 0 deletions
diff --git a/src/civetweb/src/third_party/duktape-1.5.2/polyfills/duktape-error-setter-nonwritable.js b/src/civetweb/src/third_party/duktape-1.5.2/polyfills/duktape-error-setter-nonwritable.js
new file mode 100644
index 00000000..236c706b
--- /dev/null
+++ b/src/civetweb/src/third_party/duktape-1.5.2/polyfills/duktape-error-setter-nonwritable.js
@@ -0,0 +1,20 @@
+/*
+ *  Ensure Error .fileName, .lineNumber, and .stack are not directly writable,
+ *  but can be written using Object.defineProperty().  This matches Duktape
+ *  1.3.0 and prior.
+ *
+ *  See: https://github.com/svaarala/duktape/pull/390.
+ */
+
+(function () {
+    var err = new Error('test');
+    err.fileName = 999;
+    if (err.fileName !== 999) { return; }  // already non-writable
+
+    var fn = new Function('');  // nop
+    Object.defineProperties(Error.prototype, {
+        fileName: { set: fn },
+        lineNumber: { set: fn },
+        stack: { set: fn }
+    });
+})();