From e4c8fe41ec3992df5c20e4d0d3b69240ce672e44 Mon Sep 17 00:00:00 2001
From: Maxim Bazuev <bazuka5801@mail.ru>
Date: Thu, 6 May 2021 16:41:23 +0300
Subject: [PATCH] fix(bridge): Safely JSON.Stringify circular json on log
 (#4507)

* fix: vue3 support #4506
* fix: additional JSON.stringify lines
* fix: safeStringify method context
---
 core/native-bridge.ts | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/core/native-bridge.ts b/core/native-bridge.ts
index 8d80c03324..51c69224f4 100644
--- a/core/native-bridge.ts
+++ b/core/native-bridge.ts
@@ -192,6 +192,15 @@ const initBridge = (w: any): void => {
     win.Ionic.WebView = IonicWebView;
   };
 
+  const safeStringify = (value: any): string => {
+    const seen = new Set()
+    return JSON.stringify(value, (_k, v) => {
+      if (seen.has(v)) { return '...' }
+      if (typeof v === 'object') { seen.add(v) }
+      return v
+    })
+  }
+
   const initLogger = (win: WindowCapacitor, cap: CapacitorInstance) => {
     const BRIDGED_CONSOLE_METHODS: (keyof Console)[] = [
       'debug',
@@ -271,11 +280,11 @@ const initBridge = (w: any): void => {
         typeof c.dir === 'function'
       );
     };
-
+    
     const serializeConsoleMessage = (msg: any): string => {
       if (typeof msg === 'object') {
         try {
-          msg = JSON.stringify(msg);
+          msg = safeStringify(msg);
         } catch (e) {
           // ignore
         }
@@ -362,7 +371,7 @@ const initBridge = (w: any): void => {
       // android platform
       postToNative = data => {
         try {
-          win.androidBridge.postMessage(JSON.stringify(data));
+          win.androidBridge.postMessage(safeStringify(data));
         } catch (e) {
           win?.console?.error(e);
         }
@@ -392,7 +401,7 @@ const initBridge = (w: any): void => {
             url: url,
             line: lineNo,
             col: columnNo,
-            errorObject: JSON.stringify(err),
+            errorObject: safeStringify(err),
           },
         };