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angular7使用ng2-pdf-viewer可以运行但是页面报错

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angular7使用ng2-pdf-viewer可以运行但是页面报错

如图，angular7需要pdf预览，选择npm? ng2-pdf-viewer ，可以运行，但是页面报了如图这个错误。

（Promise.allSettled is not a function
? ? at MessageHandler._deleteStreamController）

在GitHub看到有人说是要将zone升级到0.10以上版本，然而我们公司这个项目的版本不能动，因此想问下除了升级版本还有其他解决方法么?


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by (71.8m points)

pdfjs 可能用到了 Promise.allSettled，但是宿主环境不支持，加一个 polyfill 就可以了
https://www.npmjs.com/package...


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