webdriver: Report error instead of panic for invalid WebElement&ShadowRoot reference
#55527
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Signed-off-by: Euclid <[email protected]>
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Oct 18, 2025
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It is possible that the reference of
WebElementandShadowRootin the request is not String. Instead of panic, we should return "invalid argument" same as theWebWindowandWebFrame.Testing: Added 4 new subtests. There was only tests for
WebWindowandWebFramesomehow.Reviewed in servo/servo#39976