Swagger Authorize Button Error on Strapi 4

package.json

{
  // other here
  "scripts": {
    "postinstall": "node swaggerFix.js",
    // others here
  }
}

swaggerFix.js

/**
 * Fix bug in Strapi 4
 * Swagger Authorize Button Error
 * Source: <https://github.com/strapi/strapi/pull/16788/commits/23de7e699cb88de94dbf87c9ea9f265a1415fe7a>
 */
const fs = require('fs');
const path = require('path');

const filePath = path.resolve(__dirname, '../node_modules/@strapi/plugin-documentation/server/services/documentation.js');

fs.readFile(filePath, 'utf8', (err, data) => {
  if (err) {
    console.error(err);
    return;
  }

  const newString = data.replace(
    /if \(generatedSchemas\) \{\s+draft\.components = \{\s+schemas: \{ \.\.\.draft\.components\.schemas, \.\.\.generatedSchemas \},\s+\};\s+\}/,
    'draft.components.schemas = { ...draft.components.schemas, ...generatedSchemas };'
  );

  fs.writeFile(filePath, newString, 'utf8', (err) => {
    if (err) {
      console.error(err);
      return;
    }
    console.log('Fixed with success!');
  });
});