diff --git a/helpers/strategies/AxiosStrategy.js b/helpers/strategies/AxiosStrategy.js
index b319932b2..583cdcd19 100644
--- a/helpers/strategies/AxiosStrategy.js
+++ b/helpers/strategies/AxiosStrategy.js
@@ -1,5 +1,5 @@
 import axios from "axios"
-// import { isJSONContentType } from "../utils/contenttypes"
+import { decodeB64StringToArrayBuffer } from "../utils/b64"
 
 let cancelSource = axios.CancelToken.source()
 
@@ -14,11 +14,19 @@ const axiosWithProxy = async (req, { state }) => {
   try {
     const { data } = await axios.post(
       state.postwoman.settings.PROXY_URL || "https://postwoman.apollosoftware.xyz/",
-      req,
+      {
+        ...req,
+        wantsBinary: true,
+      },
       {
         cancelToken: cancelSource.token,
       }
     )
+
+    if (data.isBinary) {
+      data.data = decodeB64StringToArrayBuffer(data.data)
+    }
+
     return data
   } catch (e) {
     // Check if the throw is due to a cancellation
diff --git a/helpers/strategies/ExtensionStrategy.js b/helpers/strategies/ExtensionStrategy.js
index 1231b47df..c98204c35 100644
--- a/helpers/strategies/ExtensionStrategy.js
+++ b/helpers/strategies/ExtensionStrategy.js
@@ -1,3 +1,5 @@
+import { decodeB64StringToArrayBuffer } from "../utils/b64"
+
 export const hasExtensionInstalled = () =>
   typeof window.__POSTWOMAN_EXTENSION_HOOK__ !== "undefined"
 
@@ -17,8 +19,16 @@ const extensionWithProxy = async (req, { state }) => {
   const { data } = await window.__POSTWOMAN_EXTENSION_HOOK__.sendRequest({
     method: "post",
     url: state.postwoman.settings.PROXY_URL || "https://postwoman.apollosoftware.xyz/",
-    data: req,
+    data: {
+      ...req,
+      wantsBinary: true,
+    },
   })
+
+  if (data.isBinary) {
+    data.data = decodeB64StringToArrayBuffer(data.data)
+  }
+
   return data
 }
 
diff --git a/helpers/utils/b64.js b/helpers/utils/b64.js
new file mode 100644
index 000000000..8155c4fdf
--- /dev/null
+++ b/helpers/utils/b64.js
@@ -0,0 +1,31 @@
+export const decodeB64StringToArrayBuffer = (input) => {
+  const bytes = Math.floor((input / 4) * 3)
+  const ab = new ArrayBuffer(bytes)
+  const uarray = new Uint8Array(ab)
+
+  const keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="
+
+  let chr1, chr2, chr3
+  let enc1, enc2, enc3, enc4
+  let j = 0
+
+  input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "")
+
+  for (let i = 0; i < bytes; i += 3) {
+    //get the 3 octets in 4 ASCII chars
+    enc1 = keyStr.indexOf(input.charAt(j++))
+    enc2 = keyStr.indexOf(input.charAt(j++))
+    enc3 = keyStr.indexOf(input.charAt(j++))
+    enc4 = keyStr.indexOf(input.charAt(j++))
+
+    chr1 = (enc1 << 2) | (enc2 >> 4)
+    chr2 = ((enc2 & 15) << 4) | (enc3 >> 2)
+    chr3 = ((enc3 & 3) << 6) | enc4
+
+    uarray[i] = chr1
+    if (enc3 != 64) uarray[i + 1] = chr2
+    if (enc4 != 64) uarray[i + 2] = chr3
+  }
+
+  return ab
+}