feat: enhance anonProxyHandler to handle binary data safely

- Added Base64 encoding for the response body in the anonProxyHandler to prevent corruption of binary data when returned in JSON format.
- Updated the response structure to include the encoded body, ensuring compatibility with various data types.

CHANGELOG.md

@@ -10,6 +10,18 @@ The format is based on [Keep a Changelog][keepachangelog] and adheres to [Semant
 
 ### Changed
 
+### Deprecated
+
+### Fixed
+
+## [0.52.15]
+
+### Added
+
+- Added Base64 encoding for the response body in the anonProxyHandler to prevent corruption of binary data when returned in JSON format.
+
+### Changed
+
 - **GoReleaser**: Updated to build only `network-cli` binary (v0.52.2+)
   - Other binaries (node, gateway, identity) now installed via `network-cli setup`
   - Cleaner, smaller release packages
@@ -155,7 +167,6 @@ The format is based on [Keep a Changelog][keepachangelog] and adheres to [Semant
 
 ### Fixed
 
-
 ## [0.50.0] - 2025-09-23
 
 ### Added
@@ -286,4 +297,3 @@ _Initial release._
 
 [keepachangelog]: https://keepachangelog.com/en/1.1.0/
 [semver]: https://semver.org/spec/v2.0.0.html
-

Makefile

@@ -21,7 +21,7 @@ test-e2e:
 
 .PHONY: build clean test run-node run-node2 run-node3 run-example deps tidy fmt vet lint clear-ports
 
-VERSION := 0.52.14
+VERSION := 0.52.15
 COMMIT  ?= $(shell git rev-parse --short HEAD 2>/dev/null || echo unknown)
 DATE    ?= $(shell date -u +%Y-%m-%dT%H:%M:%SZ)
 LDFLAGS := -X 'main.version=$(VERSION)' -X 'main.commit=$(COMMIT)' -X 'main.date=$(DATE)'

pkg/gateway/anon_proxy_handler.go

@@ -1,6 +1,7 @@
 package gateway
 
 import (
+	"encoding/base64"
 	"encoding/json"
 	"fmt"
 	"io"
@@ -176,11 +177,15 @@ func (g *Gateway) anonProxyHandler(w http.ResponseWriter, r *http.Request) {
 		zap.Int("bytes", len(respBody)),
 		zap.Duration("duration", duration))
 
+	// Base64-encode the body to safely handle binary data in JSON
+	// This prevents corruption when binary data is converted to a string
+	bodyBase64 := base64.StdEncoding.EncodeToString(respBody)
+
 	// Return the proxied response
 	writeJSON(w, http.StatusOK, anonProxyResponse{
 		StatusCode: resp.StatusCode,
 		Headers:    respHeaders,
-		Body:       string(respBody),
+		Body:       bodyBase64,
 	})
 }