增加流媒体删除异常捕获

‘liusuyi’

2024-03-18 606c6a34fe4bd3fad543a2f41eafe294a331685e

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export function isPromise(maybePromise) {
    return (!!maybePromise &&
        !!maybePromise.then &&
        typeof maybePromise.then === 'function');
}