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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
| commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /testing/web-platform/tests/custom-elements/when-defined-reentry-crash.html | |
| parent | Initial commit. (diff) | |
| download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip | |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/custom-elements/when-defined-reentry-crash.html')
| -rw-r--r-- | testing/web-platform/tests/custom-elements/when-defined-reentry-crash.html | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/testing/web-platform/tests/custom-elements/when-defined-reentry-crash.html b/testing/web-platform/tests/custom-elements/when-defined-reentry-crash.html new file mode 100644 index 0000000000..38614cbbd7 --- /dev/null +++ b/testing/web-platform/tests/custom-elements/when-defined-reentry-crash.html @@ -0,0 +1,25 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>Check for crashes when a whenDefined promise resolving re-entries</title> +<meta name="author" href="mailto:xiaochengh@chromium.org"> +<link rel="help" href="https://html.spec.whatwg.org/multipage/custom-elements.html#custom-elements-api"> +<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1366813"> +<script> +class CustomElement extends HTMLElement {} + +Object.prototype.__defineGetter__("then", main); + +let depth = 0; +function main() { + if (depth > 1) return; + ++depth; + customElements.whenDefined("custom-a"); // Causes re-entry of main() + try { customElements.define("custom-a", CustomElement) } catch (e) {} + customElements.whenDefined("custom-b"); + --depth; +} + +main(); +</script> + +Test passes if it does not crash. |