fix(web): support structuredClone for DOMException

ext/web/01_dom_exception.js

@@ -7,7 +7,7 @@
 /// <reference path="../web/internal.d.ts" />
 /// <reference path="../../cli/tsc/dts/lib.deno_web.d.ts" />
 
-import { primordials } from "ext:core/mod.js";
+import { core, primordials } from "ext:core/mod.js";
 const {
   Error,
   ErrorPrototype,
@@ -137,6 +137,18 @@ class DOMException {
     error[_name] = name;
     error[_code] = code;
     error[webidl.brand] = webidl.brand;
+    ObjectDefineProperty(error, core.hostObjectBrand, {
+      __proto__: null,
+      value: () => ({
+        type: "DOMException",
+        message,
+        name,
+        stack: error.stack,
+      }),
+      enumerable: false,
+      configurable: false,
+      writable: false,
+    });
 
     return error;
   }
@@ -217,4 +229,18 @@ for (let i = 0; i < entries.length; ++i) {
   ObjectDefineProperty(DOMException.prototype, key, desc);
 }
 
+core.registerCloneableResource("DOMException", (data) => {
+  const ex = new DOMException(data.message, data.name);
+  if (data.stack !== undefined) {
+    ObjectDefineProperty(ex, "stack", {
+      __proto__: null,
+      value: data.stack,
+      configurable: true,
+      writable: true,
+      enumerable: false,
+    });
+  }
+  return ex;
+});
+
 export { DOMException, DOMExceptionPrototype };

tests/wpt/runner/expectations/html.json

@@ -1154,9 +1154,7 @@
           "ImageData object can be cloned",
           "ImageData expandos are not cloned",
           "Document objects cannot be cloned",
-          "URIError objects from other realms are treated as URIError",
-          "DOMException objects can be cloned",
-          "DOMException objects created by the UA can be cloned"
+          "URIError objects from other realms are treated as URIError"
         ]
       }
     },

tests/wpt/runner/expectations/streams.json

@@ -184,15 +184,10 @@
     "readable-stream.html": {
       "expectedFailures": [
         "cancel should be propagated to the original",
-        "cancel should abort a pending read()",
-        "transferring a non-serializable chunk should error both sides"
-      ]
-    },
-    "reason.html": {
-      "expectedFailures": [
-        "DOMException errors should be preserved"
+        "cancel should abort a pending read()"
       ]
     },
+    "reason.html": true,
     "service-worker.https.html": false,
     "shared-worker.html": false,
     "transform-stream-members.any.html": true,
@@ -204,10 +199,6 @@
       ]
     },
     "worker.html": true,
-    "writable-stream.html": {
-      "expectedFailures": [
-        "writing a unclonable object should error the stream"
-      ]
-    }
+    "writable-stream.html": true
   }
 }