Fixed bug #4727 : toFormData Blob issue on node>v17; (#4728)

* Fixed bug #4727;
Added node 18.x to the CI;
Added hotfix for `ERR_OSSL_EVP_UNSUPPORTED` issue with karma running on node >=17.x;
Added `cross-env` to allow running build and test scripts on Windows platforms;

* Added conditional setting of `--openssl-legacy-provider` option for node versions >=17.x;

* Refactored ssl-hotfix & test script;

* Fixed and refactored default max body length test due to ECONNRESET failure;

* Added test for converting the data uri to a Blob;
Fixed bug with parsing mime type for Blob;

Co-authored-by: Jay <jasonsaayman@gmail.com>

lib/helpers/fromDataURI.js

@@ -23,7 +23,7 @@ module.exports = function fromDataURI(uri, asBlob, options) {
   }
 
   if (protocol === 'data') {
-    uri = uri.slice(protocol.length);
+    uri = protocol.length ? uri.slice(protocol.length + 1) : uri;
 
     var match = DATA_URL_PATTERN.exec(uri);
 

lib/helpers/toFormData.js

@@ -1,6 +1,7 @@
 'use strict';
 
 var utils = require('../utils');
+var AxiosError = require('../core/AxiosError');
 var envFormData = require('../env/classes/FormData');
 
 function isVisitable(thing) {
@@ -20,20 +21,6 @@ function renderKey(path, key, dots) {
   }).join(dots ? '.' : '');
 }
 
-function convertValue(value) {
-  if (value === null) return '';
-
-  if (utils.isDate(value)) {
-    return value.toISOString();
-  }
-
-  if (utils.isArrayBuffer(value) || utils.isTypedArray(value)) {
-    return typeof Blob === 'function' ? new Blob([value]) : Buffer.from(value);
-  }
-
-  return value;
-}
-
 function isFlatArray(arr) {
   return utils.isArray(arr) && !arr.some(isVisitable);
 }
@@ -42,6 +29,10 @@ var predicates = utils.toFlatObject(utils, {}, null, function filter(prop) {
   return /^is[A-Z]/.test(prop);
 });
 
+function isSpecCompliant(thing) {
+  return thing && utils.isFunction(thing.append) && thing[Symbol.toStringTag] === 'FormData' && thing[Symbol.iterator];
+}
+
 /**
  * Convert a data object to FormData
  * @param {Object} obj
@@ -73,11 +64,31 @@ function toFormData(obj, formData, options) {
   var visitor = options.visitor || defaultVisitor;
   var dots = options.dots;
   var indexes = options.indexes;
+  var _Blob = options.Blob || typeof Blob !== 'undefined' && Blob;
+  var useBlob = _Blob && isSpecCompliant(formData);
 
   if (!utils.isFunction(visitor)) {
     throw new TypeError('visitor must be a function');
   }
 
+  function convertValue(value) {
+    if (value === null) return '';
+
+    if (utils.isDate(value)) {
+      return value.toISOString();
+    }
+
+    if (!useBlob && utils.isBlob(value)) {
+      throw new AxiosError('Blob is not supported. Use a Buffer instead.');
+    }
+
+    if (utils.isArrayBuffer(value) || utils.isTypedArray(value)) {
+      return useBlob && typeof Blob === 'function' ? new Blob([value]) : Buffer.from(value);
+    }
+
+    return value;
+  }
+
   /**
    *
    * @param {*} value