fix: bump deps, fixed linting, specific retry approach

.dist.eslintrc

@@ -18,7 +18,8 @@
     "no-useless-escape": "off",
     "no-cond-assign": "off",
     "no-redeclare": "off",
-    "node/no-exports-assign": "off"
+    "node/no-exports-assign": "off",
+    "no-unsafe-finally": "off"
   },
   "globals": {
     "regeneratorRuntime": "writable"
@@ -29,7 +30,8 @@
       "Array.from",
       "Symbol",
       "Object.getOwnPropertySymbols",
-      "Object.setPrototypeOf"
+      "Object.setPrototypeOf",
+      "Set"
     ]
   }
 }

.lib.eslintrc

@@ -13,7 +13,8 @@
     "no-global-assign": ["error", {"exceptions": ["exports"]}],
     "no-fallthrough": "off",
     "no-constant-condition": "off",
-    "node/no-exports-assign": "off"
+    "node/no-exports-assign": "off",
+    "no-unsafe-finally": "off"
   },
   "overrides": [
     {

README.md

@@ -83,7 +83,7 @@ Browser-ready versions of this module are available via [jsdelivr][], [unpkg][],
 This is the solution for you if you're just using `<script>` tags everywhere!
 
 ```html
-<script src="https://polyfill.io/v3/polyfill.min.js?features=Array.from,Promise,Symbol,Object.setPrototypeOf,Object.getOwnPropertySymbols"></script>
+<script src="https://polyfill.io/v3/polyfill.min.js?features=Array.from,Promise,Symbol,Object.setPrototypeOf,Object.getOwnPropertySymbols,Set"></script>
 <script src="https://cdn.jsdelivr.net/npm/superagent"></script>
 <!-- if you wish to use unpkg.com instead: -->
 <!-- <script src="https://unpkg.com/superagent"></script> -->
@@ -159,11 +159,11 @@ If you are using [browserify][], [webpack][], [rollup][], or another bundler, th
 We recommend using <https://polyfill.io> (specifically with the bundle mentioned in [VanillaJS](#vanillajs) above):
 
 ```html
-<script src="https://polyfill.io/v3/polyfill.min.js?features=Array.from,Promise,Symbol,Object.setPrototypeOf,Object.getOwnPropertySymbols"></script>
+<script src="https://polyfill.io/v3/polyfill.min.js?features=Array.from,Promise,Symbol,Object.setPrototypeOf,Object.getOwnPropertySymbols,Set"></script>
 ```
 
 * IE 9-10 requires a polyfill for `Promise`, `Array.from`, `Symbol`, `Object.getOwnPropertySymbols`, and `Object.setPrototypeOf`
-* IE 9 requires a polyfill for `window.FormData` (we recommend [formdata-polyfill][])
+* IE 9 requires a polyfill for `window.FormData` (we recommend [formdata-polyfill][]) and `Set`
 
 
 ## Plugins
@@ -212,6 +212,10 @@ For SuperAgent extensions such as couchdb and oauth visit the [wiki](https://git
 
 Our breaking changes are mostly in rarely used functionality and from stricter error handling.
 
+* [5.x to 6.x](https://github.com/visionmedia/superagent/releases/tag/v6.0.0):
+  * Retry behavior is still opt-in, however we now have a more fine-grained list of status codes and error codes that we retry against (see updated docs)
+  * A specific issue with Content-Type matching not being case-insensitive is fixed
+  * Set is now required for IE 9, see [Required Browser Features](#required-browser-features) for more insight
 * [4.x to 5.x](https://github.com/visionmedia/superagent/releases/tag/v5.0.0):
   * We've implemented the build setup of [Lass](https://lass.js.org) to simplify our stack and linting
   * Unminified browserified build size has been reduced from 48KB to 20KB (via `tinyify` and the latest version of Babel using `@babel/preset-env` and `.browserslistrc`)

docs/index.md

@@ -248,6 +248,32 @@ This method has two optional arguments: number of retries (default 1) and a call
 
 Use `.retry()` only with requests that are *idempotent* (i.e. multiple requests reaching the server won't cause undesirable side effects like duplicate purchases).
 
+All request methods are tried by default (which means if you do not want POST requests to be retried, you will need to pass a custom retry callback).
+
+By default the following status codes are retried:
+
+* `408`
+* `413`
+* `429`
+* `500`
+* `502`
+* `503`
+* `504`
+* `521`
+* `522`
+* `524`
+
+By default the following error codes are retried:
+
+* `'ETIMEDOUT'`
+* `'ECONNRESET'`
+* `'EADDRINUSE'`
+* `'ECONNREFUSED'`
+* `'EPIPE'`
+* `'ENOTFOUND'`
+* `'ENETUNREACH'`
+* `'EAI_AGAIN'`
+
 ## Setting Accept
 
 In a similar fashion to the `.type()` method it is also possible to set the `Accept` header via the short hand method `.accept()`. Which references `request.types` as well allowing you to specify either the full canonicalized MIME type name as `type/subtype`, or the extension suffix form as "xml", "json", "png", etc. for convenience:

package.json

@@ -36,21 +36,21 @@
     "semver": "^7.3.2"
   },
   "devDependencies": {
-    "@babel/cli": "^7.10.3",
-    "@babel/core": "^7.10.3",
-    "@babel/plugin-transform-runtime": "^7.10.5",
-    "@babel/preset-env": "^7.10.3",
-    "@commitlint/cli": "^9.0.1",
-    "@commitlint/config-conventional": "^9.0.1",
+    "@babel/cli": "^7.10.5",
+    "@babel/core": "^7.11.1",
+    "@babel/plugin-transform-runtime": "^7.11.0",
+    "@babel/preset-env": "^7.11.0",
+    "@commitlint/cli": "^9.1.1",
+    "@commitlint/config-conventional": "^9.1.1",
     "Base64": "^1.1.0",
     "babelify": "^10.0.0",
     "basic-auth-connect": "^1.0.0",
     "body-parser": "^1.19.0",
-    "browserify": "^16.5.1",
-    "codecov": "^3.7.0",
+    "browserify": "^16.5.2",
+    "codecov": "^3.7.2",
     "cookie-parser": "^1.4.5",
     "cross-env": "^7.0.2",
-    "eslint": "^6.7.2",
+    "eslint": "^7.6.0",
     "eslint-config-xo-lass": "^1.0.3",
     "eslint-plugin-compat": "^3.8.0",
     "eslint-plugin-node": "^11.1.0",
@@ -59,18 +59,17 @@
     "fixpack": "^3.0.6",
     "husky": "^4.2.5",
     "lint-staged": "^10.2.11",
-    "marked": "^1.1.0",
+    "marked": "^1.1.1",
     "mocha": "3.5.3",
     "multer": "^1.4.2",
     "nyc": "^15.1.0",
-    "remark-cli": "^8.0.0",
-    "remark-preset-github": "^2.0.0",
+    "remark-cli": "^8.0.1",
+    "remark-preset-github": "^3.0.0",
     "rimraf": "^3.0.2",
     "should": "^13.2.3",
     "should-http": "^0.1.1",
-    "tinyify": "^2.5.2",
-    "uglify-js": "^3.10.0",
-    "xo": "0.25.3",
+    "tinyify": "^3.0.0",
+    "xo": "0.32.1",
     "zuul": "^3.12.0"
   },
   "engines": {
@@ -212,10 +211,16 @@
           "promise/prefer-await-to-then": "off",
           "promise/valid-params": "off",
           "unicorn/filename-case": "off",
-          "valid-jsdoc": "off"
+          "valid-jsdoc": "off",
+          "node/no-unsupported-features/node-builtins": "off",
+          "node/no-path-concat": "off"
         }
       }
     ],
+    "rules": {
+      "unicorn/prevent-abbreviations": "off",
+      "node/no-unsupported-features/es-syntax": "off"
+    },
     "globals": [
       "ActiveXObject"
     ]

src/agent-base.js

@@ -25,16 +25,16 @@ function Agent() {
   'pfx',
   'cert',
   'disableTLSCerts'
-].forEach(fn => {
+].forEach((fn) => {
   // Default setting for all requests from this agent
-  Agent.prototype[fn] = function(...args) {
+  Agent.prototype[fn] = function (...args) {
     this._defaults.push({ fn, args });
     return this;
   };
 });
 
-Agent.prototype._setDefaults = function(req) {
-  this._defaults.forEach(def => {
+Agent.prototype._setDefaults = function (req) {
+  this._defaults.forEach((def) => {
     req[def.fn](...def.args);
   });
 };

src/client.js

@@ -34,7 +34,7 @@ function noop() {}
  * Expose `request`.
  */
 
-module.exports = function(method, url) {
+module.exports = function (method, url) {
   // callback
   if (typeof url === 'function') {
     return new exports.Request('GET', method).end(url);
@@ -95,7 +95,7 @@ request.getXHR = () => {
  * @api private
  */
 
-const trim = ''.trim ? s => s.trim() : s => s.replace(/(^\s*|\s*$)/g, '');
+const trim = ''.trim ? (s) => s.trim() : (s) => s.replace(/(^\s*|\s*$)/g, '');
 
 /**
  * Serialize the given `obj`.
@@ -133,7 +133,7 @@ function pushEncodedKeyValuePair(pairs, key, val) {
   }
 
   if (Array.isArray(val)) {
-    val.forEach(v => {
+    val.forEach((v) => {
       pushEncodedKeyValuePair(pairs, key, v);
     });
   } else if (isObject(val)) {
@@ -374,7 +374,7 @@ ResponseBase(Response.prototype);
  * @api private
  */
 
-Response.prototype._parseBody = function(str) {
+Response.prototype._parseBody = function (str) {
   let parse = request.parse[this.type];
   if (this.req._parser) {
     return this.req._parser(this, str);
@@ -396,7 +396,7 @@ Response.prototype._parseBody = function(str) {
  * @api public
  */
 
-Response.prototype.toError = function() {
+Response.prototype.toError = function () {
   const { req } = this;
   const { method } = req;
   const { url } = req;
@@ -515,7 +515,7 @@ RequestBase(Request.prototype);
  * @api public
  */
 
-Request.prototype.type = function(type) {
+Request.prototype.type = function (type) {
   this.set('Content-Type', request.types[type] || type);
   return this;
 };
@@ -540,7 +540,7 @@ Request.prototype.type = function(type) {
  * @api public
  */
 
-Request.prototype.accept = function(type) {
+Request.prototype.accept = function (type) {
   this.set('Accept', request.types[type] || type);
   return this;
 };
@@ -555,7 +555,7 @@ Request.prototype.accept = function(type) {
  * @api public
  */
 
-Request.prototype.auth = function(user, pass, options) {
+Request.prototype.auth = function (user, pass, options) {
   if (arguments.length === 1) pass = '';
   if (typeof pass === 'object' && pass !== null) {
     // pass is optional and can be replaced with options
@@ -569,7 +569,7 @@ Request.prototype.auth = function(user, pass, options) {
     };
   }
 
-  const encoder = string => {
+  const encoder = (string) => {
     if (typeof btoa === 'function') {
       return btoa(string);
     }
@@ -594,7 +594,7 @@ Request.prototype.auth = function(user, pass, options) {
  * @api public
  */
 
-Request.prototype.query = function(val) {
+Request.prototype.query = function (val) {
   if (typeof val !== 'string') val = serialize(val);
   if (val) this._query.push(val);
   return this;
@@ -617,7 +617,7 @@ Request.prototype.query = function(val) {
  * @api public
  */
 
-Request.prototype.attach = function(field, file, options) {
+Request.prototype.attach = function (field, file, options) {
   if (file) {
     if (this._data) {
       throw new Error("superagent can't mix .send() and .attach()");
@@ -629,7 +629,7 @@ Request.prototype.attach = function(field, file, options) {
   return this;
 };
 
-Request.prototype._getFormData = function() {
+Request.prototype._getFormData = function () {
   if (!this._formData) {
     this._formData = new root.FormData();
   }
@@ -646,7 +646,7 @@ Request.prototype._getFormData = function() {
  * @api private
  */
 
-Request.prototype.callback = function(err, res) {
+Request.prototype.callback = function (err, res) {
   if (this._shouldRetry(err, res)) {
     return this._retry();
   }
@@ -668,7 +668,7 @@ Request.prototype.callback = function(err, res) {
  * @api private
  */
 
-Request.prototype.crossDomainError = function() {
+Request.prototype.crossDomainError = function () {
   const err = new Error(
     'Request has been terminated\nPossible causes: the network is offline, Origin is not allowed by Access-Control-Allow-Origin, the page is being unloaded, etc.'
   );
@@ -682,7 +682,7 @@ Request.prototype.crossDomainError = function() {
 };
 
 // This only warns, because the request is still likely to work
-Request.prototype.agent = function() {
+Request.prototype.agent = function () {
   console.warn('This is not supported in browser version of superagent');
   return this;
 };
@@ -707,7 +707,7 @@ Request.prototype.pipe = Request.prototype.write;
  * @return {Boolean} is a host object
  * @api private
  */
-Request.prototype._isHost = function(obj) {
+Request.prototype._isHost = function (obj) {
   // Native objects stringify to [object File], [object Blob], [object FormData], etc.
   return (
     obj &&
@@ -726,7 +726,7 @@ Request.prototype._isHost = function(obj) {
  * @api public
  */
 
-Request.prototype.end = function(fn) {
+Request.prototype.end = function (fn) {
   if (this._endCalled) {
     console.warn(
       'Warning: .end() was called twice. This is not supported in superagent'
@@ -744,7 +744,7 @@ Request.prototype.end = function(fn) {
   this._end();
 };
 
-Request.prototype._setUploadTimeout = function() {
+Request.prototype._setUploadTimeout = function () {
   const self = this;
 
   // upload timeout it's wokrs only if deadline timeout is off
@@ -760,7 +760,7 @@ Request.prototype._setUploadTimeout = function() {
 };
 
 // eslint-disable-next-line complexity
-Request.prototype._end = function() {
+Request.prototype._end = function () {
   if (this._aborted)
     return this.callback(
       new Error('The request has been aborted even before .end() was called')
@@ -892,8 +892,8 @@ Request.prototype._end = function() {
 
 request.agent = () => new Agent();
 
-['GET', 'POST', 'OPTIONS', 'PATCH', 'PUT', 'DELETE'].forEach(method => {
-  Agent.prototype[method.toLowerCase()] = function(url, fn) {
+['GET', 'POST', 'OPTIONS', 'PATCH', 'PUT', 'DELETE'].forEach((method) => {
+  Agent.prototype[method.toLowerCase()] = function (url, fn) {
     const req = new request.Request(method, url);
     this._setDefaults(req);
     if (fn) {