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-rw-r--r--dom/events/test/file_beforeinput_by_execCommand_in_contentscript.html9
1 files changed, 9 insertions, 0 deletions
diff --git a/dom/events/test/file_beforeinput_by_execCommand_in_contentscript.html b/dom/events/test/file_beforeinput_by_execCommand_in_contentscript.html
new file mode 100644
index 0000000000..7610f201ae
--- /dev/null
+++ b/dom/events/test/file_beforeinput_by_execCommand_in_contentscript.html
@@ -0,0 +1,9 @@
+<!doctype html>
+<div contenteditable>abcdef</div>
+<div contenteditable>abcdef</div>
+<script>
+document.querySelectorAll("[contenteditable]")[1].addEventListener("beforeinput", event => {
+ document.execCommand("insertText", false, "ABCDEF");
+ event.preventDefault();
+});
+</script>