Adding upstream version 115.8.0esr.upstream/115.8.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 19 insertions, 0 deletions

diff --git a/testing/web-platform/tests/xhr/abort-during-readystatechange.any.js b/testing/web-platform/tests/xhr/abort-during-readystatechange.any.js
new file mode 100644
index 0000000000..a036376c6c
--- /dev/null
+++ b/testing/web-platform/tests/xhr/abort-during-readystatechange.any.js
@@ -0,0 +1,19 @@
+"use strict";
+setup({ single_test: true });
+
+const xhr = new XMLHttpRequest();
+
+// In jsdom's implementation, this would cause a crash, as after firing readystatechange for HEADERS_RECEIVED, it would
+// try to manipulate internal state. But that internal state got cleared during abort(). So jsdom needed to be modified
+// to check if that internal state had gone away as a result of firing readystatechange, and if so, bail out.
+
+xhr.addEventListener("readystatechange", () => {
+  if (xhr.readyState === xhr.HEADERS_RECEIVED) {
+    xhr.abort();
+  } else if (xhr.readyState === xhr.DONE) {
+    done();
+  }
+});
+
+xhr.open("GET", "/common/blank.html");
+xhr.send();