javascript - babel-polyfill messed with Object in IE11 -

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i have 1-year-old react app server render had been in production while,

however, detected couple of days before somehow, app stop work ie11. weird because have been tested on ie11 many times , worked before. try roll project (using tagged docker image) , error still appears.

the root cause appears in babel-polyfill somehow change way object created in ie11.

the created object have jscomp_symbol_symbol.tostringtag1" array iterator"

here's found on console:

enter image description here

try input console.log({}) if have ie11 output differently.

this somehow causing web app fail since every object fail lodash _.isplainobject condition inside redux.


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