; charset=utf-8

Author: zfir

plugin.xml

@@ -16,7 +16,7 @@
    <dependency id="cordova-plugin-file" version="6.0.2"/>
     <platform name="android">
         <framework src="androidx.work:work-runtime:2.7.1" />
-        <framework src="com.squareup.okhttp3:okhttp:4.3.1" />
+        <framework src="com.squareup.okhttp3:okhttp:4.9.3" />
         <framework src="androidx.room:room-runtime:2.4.2" />
         <framework src="src/android/config.gradle" custom="true" type="gradleReference"/>
         <config-file target="res/xml/config.xml" parent="/*">

src/android/UploadTask.java

@@ -328,7 +328,7 @@ private Request createRequest() throws FileNotFoundException {
 
         // Build file reader
         String extension = MimeTypeMap.getFileExtensionFromUrl(filepath);
-        MediaType mediaType = MediaType.parse(MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension));
+        MediaType mediaType = MediaType.parse(MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension) + "; charset=utf-8");
         File file = new File(filepath);
         ProgressRequestBody fileRequestBody = new ProgressRequestBody(mediaType, file.length(), new FileInputStream(file), this::handleProgress);