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t4t5 / sweetalert

A beautiful replacement for JavaScript's "alert"
https://sweetalert.js.org
MIT License
22.4k stars 2.84k forks source link

Is IE9 not supported now? #783

Closed calcnate closed 6 years ago

calcnate commented 6 years ago

console error detail in IE9:

Possible Unhandled Promise Rejection:TypeError: Unable to get value of the property 'add': object is null or undefined