Vue axios under IE9, the development environment request failed (the request body is empty), but what is the normal situation in the packaged production environment?

import promise from "es6-promise"
promise.polyfill();

has been handled in this way

the following figure appears in the development environment. Is the request parameter empty? Request header is normal

but the production environment is normal after packaging

then my development environment is added as follows (--save-dev)

import "babel-polyfill"

IE10 everything is fine

Vue.js axios internet-explorer-9

Aug.27,2021

try the following two:
1 br require ('es6-promise'). Polyfill ();
or
2) import' es6-promise/auto';

how does the landlord solve the problem
I have encountered the same problem
I am not in the development environment and test environment
ie9 can not see network requests in axios request interception can print request but promise not to give response

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