From d9476292929a680e364db403d6fc69cfb893599f Mon Sep 17 00:00:00 2001
From: Nayeem Rahman <nayeemrmn99@gmail.com>
Date: Wed, 8 Sep 2021 22:14:26 +0100
Subject: fix(ext/web): Preserve stack traces for DOMExceptions (#11959)

---
 ext/web/01_dom_exception.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'ext/web/01_dom_exception.js')

diff --git a/ext/web/01_dom_exception.js b/ext/web/01_dom_exception.js
index c6f60ae2f..0d9e82c56 100644
--- a/ext/web/01_dom_exception.js
+++ b/ext/web/01_dom_exception.js
@@ -11,6 +11,8 @@
 
 ((window) => {
   const {
+    ArrayPrototypeSlice,
+    Error,
     ErrorPrototype,
     ObjectDefineProperty,
     ObjectEntries,
@@ -94,6 +96,16 @@
         context: "Argument 2",
       });
       this.#code = nameToCodeMapping[this.#name] ?? 0;
+
+      // `DOMException` does not have `.stack`, so `Error.prepareStackTrace()`
+      // is not called on it, meaning our structured stack trace hack doesn't
+      // apply. This patches it in.
+      const error = new Error();
+      error.stack;
+      ObjectDefineProperty(this, "__callSiteEvals", {
+        value: ArrayPrototypeSlice(error.__callSiteEvals, 1),
+        configurable: true,
+      });
     }
 
     get message() {
-- 
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