epubjs如果获取的文件加载失败，应在哪里进行回调？

Question

epubjs如果获取的文件加载失败，应使用哪个方法进行回调？

Answer 1

 book.open("/path/to/book.epub")    .then(function(res) {     console.log(res)   }).catch(function(error) {     console.log(error)   })

Answer 2

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