From d5e17c24356bf959432e2b66a390c95993628e25 Mon Sep 17 00:00:00 2001
From: vamsi <vamsi@example.com>
Date: Thu, 26 Mar 2026 17:21:37 +0530
Subject: [PATCH] fix(http): correctly serialize Blob objects in request bodies
 and FormData

---
 android/capacitor/src/main/assets/native-bridge.js | 6 +++---
 core/native-bridge.ts                              | 8 ++++----
 ios/Capacitor/Capacitor/assets/native-bridge.js    | 6 +++---
 3 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/android/capacitor/src/main/assets/native-bridge.js b/android/capacitor/src/main/assets/native-bridge.js
index f5e7cc440..000b49a9c 100644
--- a/android/capacitor/src/main/assets/native-bridge.js
+++ b/android/capacitor/src/main/assets/native-bridge.js
@@ -48,14 +48,14 @@ var nativeBridge = (function (exports) {
         const newFormData = [];
         for (const pair of formData.entries()) {
             const [key, value] = pair;
-            if (value instanceof File) {
+            if (value instanceof Blob) {
                 const base64File = await readFileAsBase64(value);
                 newFormData.push({
                     key,
                     value: base64File,
                     type: 'base64File',
                     contentType: value.type,
-                    fileName: value.name,
+                    fileName: value.name || 'blob',
                 });
             }
             else {
@@ -128,7 +128,7 @@ var nativeBridge = (function (exports) {
                 type: 'formData',
             };
         }
-        else if (body instanceof File) {
+        else if (body instanceof Blob) {
             const fileData = await readFileAsBase64(body);
             return {
                 data: fileData,
diff --git a/core/native-bridge.ts b/core/native-bridge.ts
index 4fc028f37..915ceae32 100644
--- a/core/native-bridge.ts
+++ b/core/native-bridge.ts
@@ -18,7 +18,7 @@ import { CapacitorException } from './src/util';
 // eslint-disable-next-line
 let dummy = {};
 
-const readFileAsBase64 = (file: File): Promise<string> =>
+const readFileAsBase64 = (file: Blob): Promise<string> =>
   new Promise((resolve, reject) => {
     const reader = new FileReader();
     reader.onloadend = () => {
@@ -34,14 +34,14 @@ const convertFormData = async (formData: FormData): Promise<any> => {
   const newFormData: CapFormDataEntry[] = [];
   for (const pair of formData.entries()) {
     const [key, value] = pair;
-    if (value instanceof File) {
+    if (value instanceof Blob) {
       const base64File = await readFileAsBase64(value);
       newFormData.push({
         key,
         value: base64File,
         type: 'base64File',
         contentType: value.type,
-        fileName: value.name,
+        fileName: (value as any).name || 'blob',
       });
     } else {
       newFormData.push({ key, value, type: 'string' });
@@ -110,7 +110,7 @@ const convertBody = async (
       data: await convertFormData(body),
       type: 'formData',
     };
-  } else if (body instanceof File) {
+  } else if (body instanceof Blob) {
     const fileData = await readFileAsBase64(body);
     return {
       data: fileData,
diff --git a/ios/Capacitor/Capacitor/assets/native-bridge.js b/ios/Capacitor/Capacitor/assets/native-bridge.js
index f5e7cc440..000b49a9c 100644
--- a/ios/Capacitor/Capacitor/assets/native-bridge.js
+++ b/ios/Capacitor/Capacitor/assets/native-bridge.js
@@ -48,14 +48,14 @@ var nativeBridge = (function (exports) {
         const newFormData = [];
         for (const pair of formData.entries()) {
             const [key, value] = pair;
-            if (value instanceof File) {
+            if (value instanceof Blob) {
                 const base64File = await readFileAsBase64(value);
                 newFormData.push({
                     key,
                     value: base64File,
                     type: 'base64File',
                     contentType: value.type,
-                    fileName: value.name,
+                    fileName: value.name || 'blob',
                 });
             }
             else {
@@ -128,7 +128,7 @@ var nativeBridge = (function (exports) {
                 type: 'formData',
             };
         }
-        else if (body instanceof File) {
+        else if (body instanceof Blob) {
             const fileData = await readFileAsBase64(body);
             return {
                 data: fileData,