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-rw-r--r--js/src/jit-test/tests/basic/bug767273.js7
1 files changed, 7 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/bug767273.js b/js/src/jit-test/tests/basic/bug767273.js
new file mode 100644
index 000000000..2d8e99d3c
--- /dev/null
+++ b/js/src/jit-test/tests/basic/bug767273.js
@@ -0,0 +1,7 @@
+var prox = new Proxy({}, {
+ getOwnPropertyDescriptor: function() { return undefined; },
+ has: function() { return true; },
+});
+
+// Don't crash.
+newGlobal().__lookupSetter__.call(prox, "e");