fix(macOS): resolve EXC_BAD_ACCESS crash during drag-and-drop on Sequoia#28
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fix(macOS): resolve EXC_BAD_ACCESS crash during drag-and-drop on Sequoia#28jezip wants to merge 1 commit into
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On macOS the webview's built-in drag-drop handler conflicts with the native drag session started by tauri-plugin-drag: the drag either does nothing (no file dropped into Finder/DAW) or crashes with EXC_BAD_ACCESS in AppKit's NSViewAlignRect. Disabling the webview handler is the documented requirement for the native drag plugin, and the app doesn't consume inbound native drops anyway. Windows was unaffected. Skips the unrelated `tao = "0.30"` change from upstream PR Robert-K#28: tauri already pins the newer tao 0.34.3, and that pin would only add a second, older tao to the tree without changing the one actually used. Also adds a build-macos-test workflow that produces an arm64 .dmg as a downloadable artifact (no release) for testing on Apple Silicon. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Issue Description
The application crashes immediately on launch or during the first drag-and-drop interaction on macOS 26 (Sequoia) with Apple Silicon (M1) hardware.
Crash Log Highlights:
Exception Type: EXC_BAD_ACCESS (SIGSEGV)Exception Subtype: KERN_INVALID_ADDRESSTriggered by Thread: 0 maindrag::platform_impl::platform::start_dragAppKit->NSViewAlignRectCode Type: X86-64 (Translated)indicates Rosetta fallback.error.mov
Root Cause & Fix
This crash is a known incompatibility between older Tauri windowing libraries (
tao) and the strict memory alignment / Pointer Authentication rules introduced in macOS 15/16 and refined in 26.taoto version0.30. This version includes upstream fixes forNSViewalignment crashes on Apple Silicon.dragDropEnabled: falseintauri.conf.json. This resolves a race condition where the native macOS drag handler conflicts with the webview's HTML5 drag handler, leading to an invalid memory access attempt.Changes
taodependency to0.30insrc-tauri/Cargo.toml."dragDropEnabled": falseto the window configuration insrc-tauri/tauri.conf.json.work.1.mov