Note: This is an alpha release. Please file new issues for any bugs you find in it.

This release is published to npm under the alpha tag and can be installed via npm install electron@alpha, or npm install electron@45.0.0-alpha.6.

Release Notes for v45.0.0-alpha.6

Features

• Added initiatorOrigin to webRequest and protocol handler requests, DownloadItem.getInitiatorOrigin(), and a trailing frame argument to the will-download and preconnect session events. #53700 ^{(Also in 43, 44)}
• Added the ELECTRON_DEBUG_DRAGGABLE_REGIONS environment variable, which visualizes and logs draggable regions in unpackaged apps to help debug custom title bars. #53626 ^{(Also in 43, 44)}

Fixes

• Added validation to protocol.registerSchemesAsPrivileged() to reject protocol names that do not conform to RFC 3986 URI scheme grammar. #53742 ^{(Also in 44)}
• Fixed Ctrl+Y not yanking text killed with Ctrl+K in text fields on macOS. #53715 ^{(Also in 44)}
• Fixed Window Controls Overlay CSS environment variables and navigator.windowControlsOverlay not being populated for WebContentsViews in a BaseWindow. #53811 ^{(Also in 44)}
• Fixed <select> dropdowns not rendering in offscreen windows on macOS. #53716
• Fixed webContents.capturePage() on offscreen windows returning an image resampled to the display's scale factor instead of rendered at the window's offscreen.deviceScaleFactor. #53817 ^{(Also in 43, 44)}
• Fixed webContents emitting unresponsive right after the system wakes from sleep on Windows, and emitting responsive when a hung window was hidden rather than when it recovered. #53760 ^{(Also in 44)}
• Fixed a crash when a webContents navigated to the Chrome Web Store and the page invoked the unsupported chrome.webstorePrivate API. #53775
• Fixed a possible hang when pressing Esc while a <webview> is fullscreen. #53744
• Fixed an issue where the browser-side check that blocks drag and drop between cross-site frames of the same page was disabled. #53748 ^{(Also in 43, 44)}
• Fixed several object lifetime issues in Debugger, Menu, Tray, Notification, globalShortcut, utilityProcess, ServiceWorkerMain, WebFrameMain, webFrame, sharedTexture, systemPreferences, netLog, MessagePortMain, net.request and shell.openPath(). #53805
• Internal <webview>, window.close() and executeJavaScript reply IPCs are validated against the sending frame. #53724 ^{(Also in 42, 43, 44)}
• <webview> without allowpopups also blocks links opened into a new window by modifier-click, and such windows navigate as the clicking document rather than as a browser-initiated load. #53717 ^{(Also in 42, 43, 44)}
• getUserMedia with chromeMediaSource: 'desktop' no longer accepts WebContents source ids; use chromeMediaSource: 'tab' with webContents.getMediaSourceId() or setDisplayMediaRequestHandler to capture a WebContents. #53708 ^{(Also in 42, 43, 44)}
• nodeIntegrationInWorker now applies only to workers created by frames that themselves have Node integration; enable nodeIntegrationInSubFrames to keep Node in workers created by subframes. #53706 ^{(Also in 42, 43, 44)}

Other Changes

• Backported fixes from upstream Chromium and V8. #53765
• Fixed V8 code caching for https scripts loaded by file:// and custom-scheme pages. #53746 ^{(Also in 44)}
• Fixed a renderer crash that could occur when printing from an iframe. #53763 ^{(Also in 43, 44)}
• Updated Node.js to v24.21.0. #53780