1. Project environment

 vue + vue-admin-template 
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2. The problem spot

Since the project was checked out by Party A for loopholes and sensitive data needed to be encrypted and decrypted, crypto-JS was introduced for development and chrome was tested online without any problems. Within 2 days, a problem was reported in IE, and the direct interface was blank. The project could not be opened completely. Finding a solution led to today's article. 2) Babel-polyfill has been introduced into main.js, and it does not work ？？？？ (I don't know if it works, some people say it works, some people say it doesn't work, I don't care, whoever can solve my problem works, The crypto-js ES6 parameter fn (StrBase64 = false) was assigned a default valueCopy the code

3. What can be done to solve the problem? I this kind of low grade code baby farmers can only find Baidu)

Vue 3.0 does not have webpack.conf.js in it. It is so confusing that I have to go to The search engine to see if I can find one.

1). It must be installation

 npm install --save babel-polyfill

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2) Use it

Here is the configuration in vue.config.js

/// I heard that this is the key, very important, very important, I do not understand, I also dare not ask
transpileDependencies: ['element-ui'].chainWebpack:config= > {
    config.entry('main').add('babel-polyfill')
{
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3) test try (still white screen, at that time MY hair stood up, do not know how to be good, forget it, drink saliva on a toilet, I squat in the toilet of that moment, I suddenly remembered a word in Baidu, specify a file, is not I should not copy Baidu should change the element-UI crypto-js, it is possible, Wipe your ass, go back and try again, modify the following sample juice)
    transpileDependencies: ['crypto-js'].Copy the code
4) Restart the service wow, success ！！！！ Success ！！！！ (The fun of forgiving stupid babies is so low.)
5) Keep a silly baby success diary!! (This article was born)

Conclusion :(original is not easy, give silly baby a trace of encouragement!! Give it a thumbs up.)