fix: don't mutate env.API_URL

This was causing side-effects and invalid proxy config after reloading nuxt.config.js

Author: Pooya Parsa

lib/module.js

@@ -52,8 +52,6 @@ module.exports = function nuxtAxios (_moduleOptions) {
   /* istanbul ignore if */
   if (process.env.API_URL) {
     options.baseURL = process.env.API_URL
-  } else {
-    process.env.API_URL = options.baseURL
   }
 
   /* istanbul ignore if */
@@ -93,6 +91,9 @@ module.exports = function nuxtAxios (_moduleOptions) {
     ])
   }
 
+  // Set _AXIOS_BASE_URL_ for dynamic SSR baseURL
+  process.env._AXIOS_BASE_URL_ = options.baseURL
+
   /* eslint-disable no-console */
   debug(
     `BaseURL: ${chalk.green(options.baseURL)} (Browser: ${chalk.green(

lib/plugin.template.js

@@ -136,8 +136,8 @@ export default (ctx, inject) => {
   const axiosOptions = {
     // baseURL
     baseURL : process.browser
-      ? (process.env.API_URL_BROWSER || '<%= options.browserBaseURL %>')
-      : (process.env.API_URL || '<%= options.baseURL %>'),
+      ? '<%= options.browserBaseURL %>'
+      : (process.env._AXIOS_BASE_URL_ || '<%= options.baseURL %>'),
 
     // Create fresh objects for all default header scopes
     // Axios creates only one which is shared across SSR requests!