CONSOLE WARNING: Listener added for a 'DOMNodeRemoved' mutation event. This event type is deprecated, and will be removed from this browser VERY soon. Usage of this event listener will cause performance issues today, and represents a large risk of imminent site breakage. Consider using MutationObserver instead. See https://chromestatus.com/feature/5083947249172480 for more information.
DOM mutation events should not be dispatched during DOM mutations in surroundContents().
On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
PASS textContainer.childNodes.length is 2
PASS range.startContainer === textContainer is true
PASS range.startOffset is 1
PASS range.endContainer === textContainer is true
PASS range.endOffset is 2
PASS Did not crash.
PASS successfullyParsed is true
TEST COMPLETE
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