new Url(url, base), url passed as a variable cannot get the correct address?

[LJS-Y]

new URL('../assets/images/common/404Bg.jpg', import.meta.url)
正确地址。
const url = '../assets/images/common/404Bg.jpg';
new URL(url, import.meta.url)
错误地址。
为什么？

[9aoy]

Rspack / webpack does not support the use of variables in new URL. This is because Rspack cannot statically analyze the syntax.