javascript - In the vue-cli project, cross-domain problems encountered when obtaining WeChat access_token

Question

Figure 1: I want to get WeChat's access_token through a request, but a cross-domain request fails in the console. The requested headers return the correct data. May I ask the master, can axios in Vue use jsonp? Or how to solve this problem of getting access_token across domains? ?

ringa_lee · Answer

access_token is not recommended to be obtained from the front desk. This needs to be obtained and processed by the background. The string you request contains the key information of your WeChat public platform. The background simulates the http request to process. The access_token can be obtained up to 2000 times a day before the valid time is up. It is valid until it expires. You need to store it in the database or somewhere to determine whether it has expired when needed. If it is not expired, use it directly. If it expires, retrieve it again

大家讲道理 · Answer

Regarding using jsonp with axios, you need to install the npm package separately.

npm install jsonp --save
var jsonp = require('jsonp');

jsonp('http://www.example.com/foo', null, function (err, data) {
  if (err) {
    console.error(err.message);
  } else {
    console.log(data);
  }
});

Related links
https://github.com/mzabriskie...