When Ios upload image should delete charset=utf-8 in http request header content-type ,otherwise will cause bug

README.md

@@ -67,6 +67,11 @@ After `0.10.3` you can install this package directly from Github
 # replace <branch_name> with any one of the branches
 npm install --save github:wkh237/react-native-fetch-blob-package#<branch_name>
 ```
+
+**Manually Link Native Modules**
+
+If automatically linking doesn't work for you, see instructions on [manually linking](https://github.com/joltup/react-native-fetch-blob/wiki/Manually-Link-Package#index).
+
 **Automatically Link Native Modules**
 
 For 0.29.2+ projects, simply link native packages via the following command (note: rnpm has been merged into react-native)
@@ -180,16 +185,20 @@ RNFetchBlob.fetch('GET', 'http://www.example.com/images/img1.png', {
     Authorization : 'Bearer access-token...',
     // more headers  ..
   })
-  // when response status code is 200
   .then((res) => {
-    // the conversion is done in native code
-    let base64Str = res.base64()
-    // the following conversions are done in js, it's SYNC
-    let text = res.text()
-    let json = res.json()
-
+    let status = res.info().status;
+
+    if(status == 200) {
+      // the conversion is done in native code
+      let base64Str = res.base64()
+      // the following conversions are done in js, it's SYNC
+      let text = res.text()
+      let json = res.json()
+    } else {
+      // handle other status codes
+    }
   })
-  // Status code is not 200
+  // Something went wrong:
   .catch((errorMessage, statusCode) => {
     // error handling
   })

android/src/main/java/com/RNFetchBlob/RNFetchBlobFS.java

@@ -245,7 +245,7 @@ static Map<String, Object> getSystemfolders(ReactApplicationContext ctx) {
         String state;
         state = Environment.getExternalStorageState();
         if (state.equals(Environment.MEDIA_MOUNTED)) {
-            res.put("SDCardDir", Environment.getExternalStorageDirectory().getAbsolutePath());
+            res.put("SDCardDir", Environment.getExternalStorageDirectory().getAbsolutePath()
             try {
                 res.put("SDCardApplicationDir", ctx.getExternalFilesDir(null).getParentFile().getAbsolutePath());
             } catch(Exception e) {

ios/RNFetchBlobReqBuilder.m

@@ -69,7 +69,7 @@ +(void) buildMultipartRequest:(NSDictionary *)options
                 [mheaders setValue:[NSString stringWithFormat:@"%lu",[postData length]] forKey:@"Content-Length"];
                 [mheaders setValue:@"100-continue" forKey:@"Expect"];
                 // appaned boundary to content-type
-                [mheaders setValue:[NSString stringWithFormat:@"multipart/form-data; charset=utf-8; boundary=%@", boundary] forKey:@"content-type"];
+                [mheaders setValue:[NSString stringWithFormat:@"multipart/form-data; boundary=%@", boundary] forKey:@"content-type"];
                 [request setHTTPMethod: method];
                 [request setAllHTTPHeaderFields:mheaders];
                 onComplete(request, [formData length]);