Secure Renderer-to-Main IPC in Electron Using contextBridge
Expose a limited API from Electron's preload script to the renderer with contextBridge, keeping Node integration disabled.
Loading…
ReadMeFeed / Community knowledge
#contextbridge
Real questions. Useful conversations. Find the people who know your stack.
electronDiagnosing Missing contextBridge APIs in Electron Renderer Processes
Renderer code calling window.myAPI gets undefined even though the preload script exposes it. This guide shows how to isolate the cause and fix it without weakening renderer security.
Controlling Electron's Renderer Attack Surface with contextBridge
Electron's contextBridge lets you expose a narrow, audited API from the main process to the renderer. Here is how to replace nodeIntegration with an explicit IPC contract, with a worked file-read example.
The One Electron Bridge You Actually Need: contextBridge Without the Headaches
Electron's context isolation wall is deliberate — and contextBridge is the only door through it. A practical walkthrough of the preload/main/renderer pattern, Structured Clone pitfalls, and the escape hatches to avoid.
Securing Electron IPC with Context Isolation and ContextBridge
Learn how to expose only the needed IPC methods to your renderer using Electron's Context Isolation and ContextBridge, preventing accidental Node.js leakage.
Secure Renderer‑Main Communication in Electron Using contextBridge
Learn how Electron’s context isolation and contextBridge let you expose safe, limited APIs from the preload script to the renderer, keeping Node access locked down.
Node Integration versus Remote Module/ContextBridge for Secure NW.js Production Builds
Goal: Select a method for exposing necessary Node.js functionality to the renderer process in an NW.js application that remains secure when the app loads remote content in production. Constraints: The chosen approach must prevent code‑injection attacks, require an explicit whitelist of modules, and ensure that any preload script used to bridge Node APIs reso
nodewebkitElectron contextBridge: limiting ipcRenderer.invoke to specific IPC channels
Electron's contextBridge is the supported way to expose IPC from a sandboxed preload script to the renderer, but the shape of that exposure is left as a design decision. With contextIsolation enabled (the default since Electron 12) and nodeIntegration disabled, the renderer can only reach what the preload explicitly exposes through contextBridge.exposeInMain