Allow Blob Responses

package.json

@@ -55,6 +55,7 @@
   },
   "dependencies": {
     "fast-deep-equal": "^3.1.3",
+    "is-blob": "^2.1.0",
     "is-buffer": "^2.0.5"
   },
   "bundlesize": [

src/handle_request.js

@@ -6,7 +6,8 @@ function transformRequest(data) {
   if (
     utils.isArrayBuffer(data) ||
     utils.isBuffer(data) ||
-    utils.isStream(data)
+    utils.isStream(data) ||
+    utils.isBlob(data)
   ) {
     return data;
   }

src/utils.js

@@ -3,6 +3,7 @@
 var axios = require("axios");
 var isEqual = require("fast-deep-equal");
 var isBuffer = require("is-buffer");
+var isBlob = require("is-blob");
 var toString = Object.prototype.toString;
 
 // < 0.13.0 will not have default headers set on a custom instance
@@ -197,6 +198,7 @@ module.exports = {
   isFunction: isFunction,
   isObjectOrArray: isObjectOrArray,
   isBuffer: isBuffer,
+  isBlob: isBlob,
   isEqual: isEqual,
   createAxiosError: createAxiosError,
   createCouldNotFindMockError: createCouldNotFindMockError,

test/utils.spec.js

@@ -2,6 +2,7 @@ var expect = require("chai").expect;
 var find = require("../src/utils").find;
 var isEqual = require("../src/utils").isEqual;
 var isObjectOrArray = require("../src/utils").isObjectOrArray;
+var isBlob = require("../src/utils").isBlob;
 
 describe("utility functions", function () {
   context("find", function () {
@@ -63,4 +64,21 @@ describe("utility functions", function () {
       expect(isObjectOrArray("1")).to.be.false;
     });
   });
+
+  context("isBlob", function () {
+    it("returns false for anything that is not a Blob", function () {
+      expect(isBlob(true)).to.be.false;
+      expect(isBlob(false)).to.be.false;
+      expect(isBlob(null)).to.be.false;
+      expect(isBlob(undefined)).to.be.false;
+      expect(isBlob(function () {})).to.be.false;
+      expect(isBlob(0)).to.be.false;
+      expect(isBlob(1)).to.be.false;
+      expect(isBlob("")).to.be.false;
+      expect(isBlob(" ")).to.be.false;
+      expect(isBlob("1")).to.be.false;
+      expect(isBlob({ foo: "bar" })).to.be.false;
+      expect(isBlob([1, 2, 3])).to.be.false;
+    });
+  });
 });