Make preload links fire onerror event on network error
#39727
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According to whatwg/html#1142 we expect `onerror` event of `<link rel=preload>` to be fired only on network errors and not on `404`.
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Ms2ger
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Apr 28, 2023
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According to whatwg/html#1142 we expect
onerrorevent of<link rel=preload>to be fired only on network errors and not on404.