diff --git a/test/specs/requests.spec.js b/test/specs/requests.spec.js
index a871968..78df9f1 100644
--- a/test/specs/requests.spec.js
+++ b/test/specs/requests.spec.js
@@ -264,12 +264,6 @@ describe('requests', function () {
   });
 
   it('should support binary data as array buffer', function (done) {
-    // Int8Array doesn't exist in IE8/9
-    if (isOldIE && typeof Int8Array === 'undefined') {
-      done();
-      return;
-    }
-
     var input = new Int8Array(2);
     input[0] = 1;
     input[1] = 2;
@@ -286,12 +280,6 @@ describe('requests', function () {
   });
 
   it('should support binary data as array buffer view', function (done) {
-    // Int8Array doesn't exist in IE8/9
-    if (isOldIE && typeof Int8Array === 'undefined') {
-      done();
-      return;
-    }
-
     var input = new Int8Array(2);
     input[0] = 1;
     input[1] = 2;
@@ -308,12 +296,6 @@ describe('requests', function () {
   });
 
   it('should support array buffer response', function (done) {
-    // ArrayBuffer doesn't exist in IE8/9
-    if (isOldIE && typeof ArrayBuffer === 'undefined') {
-      done();
-      return;
-    }
-
     var response;
 
     function str2ab(str) {
diff --git a/test/specs/utils/isX.spec.js b/test/specs/utils/isX.spec.js
index 7620f8c..08fa2c4 100644
--- a/test/specs/utils/isX.spec.js
+++ b/test/specs/utils/isX.spec.js
@@ -8,39 +8,19 @@ describe('utils::isX', function () {
   });
 
   it('should validate ArrayBuffer', function () {
-    // ArrayBuffer doesn't exist in IE8/9
-    if (isOldIE && typeof ArrayBuffer === 'undefined') {
-      return;
-    }
-
     expect(utils.isArrayBuffer(new ArrayBuffer(2))).toEqual(true);
     expect(utils.isArrayBuffer({})).toEqual(false);
   });
 
   it('should validate ArrayBufferView', function () {
-    // ArrayBuffer doesn't exist in IE8/9
-    if (isOldIE && typeof ArrayBuffer === 'undefined') {
-      return;
-    }
-
     expect(utils.isArrayBufferView(new DataView(new ArrayBuffer(2)))).toEqual(true);
   });
 
   it('should validate FormData', function () {
-    // FormData doesn't exist in IE8/9
-    if (isOldIE && typeof FormData === 'undefined') {
-      return;
-    }
-
     expect(utils.isFormData(new FormData())).toEqual(true);
   });
 
   it('should validate Blob', function () {
-    // Blob doesn't exist in IE8/9
-    if (isOldIE && typeof Blob === 'undefined') {
-      return;
-    }
-
     expect(utils.isBlob(new Blob())).toEqual(true);
   });