IE8 will throw "ERR_ACCESSORS_NOT_SUPPORTED" error when using Object.defineProperty in es5-shim.js

[EricTiger1986]

When running the codes like (please see below) in IE8 with es5-sham.js, es5-sham.js will throw an error (ERR_ACCESSORS_NOT_SUPPORTED) since IE8 doesn't support function defineGetter. Is there any workaround about this issue? Thank you in advance.

Object.defineProperty(DOMElement.prototype, 'localName', {
  get: function () {
    return this.getName()
  }
})

[ljharb]

There is no workaround. ES5 getters and setters are utterly incompatible with IE 8 and below.

The only solution is to simply not use this language feature.

(Separately, please don't modify things you don't own, like DOMElement.prototype)

[EricTiger1986]

Thank you for your suggestion. But these codes are in the third part module I require in my project. The project can work well in IE9+, so I cannot re-code this project.

[ljharb]

Not sure what to tell you - if that third-party module uses getters and setters, and you use it, then your site/app simply can't work in IE 8. You'll have to choose between using that module, and supporting IE 8.