From 652195ce0652f8003909c15fdc1e7d27baad5756 Mon Sep 17 00:00:00 2001
From: DigitalBrainJS <robotshara@gmail.com>
Date: Fri, 20 May 2022 16:20:14 +0300
Subject: [PATCH] Added test for converting the data uri to a Blob; Fixed bug
 with parsing mime type for Blob;

---
 lib/helpers/fromDataURI.js       |  2 +-
 test/unit/adapters/http.js       | 19 +++++++++++++++++++
 test/unit/helpers/fromDataURI.js |  2 +-
 3 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/lib/helpers/fromDataURI.js b/lib/helpers/fromDataURI.js
index 4f57c7cf46..3ee2ab925a 100644
--- a/lib/helpers/fromDataURI.js
+++ b/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);
 
diff --git a/test/unit/adapters/http.js b/test/unit/adapters/http.js
index 4bdc3eaae7..bc5a9436d2 100644
--- a/test/unit/adapters/http.js
+++ b/test/unit/adapters/http.js
@@ -15,6 +15,7 @@ var formidable = require('formidable');
 var express = require('express');
 var multer = require('multer');
 var bodyParser = require('body-parser');
+const isBlobSupported = typeof Blob !== 'undefined';
 
 var noop = ()=> {};
 
@@ -1483,6 +1484,24 @@ describe('supports http with nodejs', function () {
       }).catch(done);
     });
 
+    it('should support requesting data URL as a Blob (if supported by the environment)', function (done) {
+
+      if (isBlobSupported) {
+        this.skip();
+        return;
+      }
+
+      const buffer = Buffer.from('123');
+
+      const dataURI = 'data:application/octet-stream;base64,' + buffer.toString('base64');
+
+      axios.get(dataURI, {responseType: 'blob'}).then(async ({data})=> {
+        assert.strictEqual(data.type, 'application/octet-stream');
+        assert.deepStrictEqual(await data.text(), '123');
+        done();
+      }).catch(done);
+    });
+
     it('should support requesting data URL as a String (text)', function (done) {
       const buffer = Buffer.from('123', 'utf-8');
 
diff --git a/test/unit/helpers/fromDataURI.js b/test/unit/helpers/fromDataURI.js
index e4f6754535..97ff84bf06 100644
--- a/test/unit/helpers/fromDataURI.js
+++ b/test/unit/helpers/fromDataURI.js
@@ -7,6 +7,6 @@ describe('helpers::fromDataURI', function () {
 
     const dataURI = 'data:application/octet-stream;base64,' + buffer.toString('base64');
 
-    assert.deepStrictEqual(fromDataURI(dataURI), buffer);
+    assert.deepStrictEqual(fromDataURI(dataURI, false), buffer);
   });
 });