Problems with running in a worker?

[randallb]

If I try to run webview in a webworker, I get:

Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'NSWindow drag regions should only be invalidated on the Main Thread!'
*** First throw call stack:
(
    0   CoreFoundation                      0x00000001ad8db3f8 __exceptionPreprocess + 176
    1   libobjc.A.dylib                     0x00000001ad426ea8 objc_exception_throw + 60
    2   CoreFoundation                      0x00000001ad904810 _CFBundleGetValueForInfoKey + 0
    3   AppKit                              0x00000001b0b02a18 -[NSWindow(NSWindow_Theme) _postWindowNeedsToResetDragMarginsUnlessPostingDisabled] + 320
    4   AppKit                              0x00000001b0af1524 -[NSWindow _initContent:styleMask:backing:defer:contentView:] + 816
    5   AppKit                              0x00000001b0af11e8 -[NSWindow initWithContentRect:styleMask:backing:defer:] + 48
    6   5a78a907fb3b54a23d6ec12156baa6a1009 0x0000000108904fd0 _ZN7webview6detail22cocoa_wkwebview_engineC2EbPv + 672
    7   5a78a907fb3b54a23d6ec12156baa6a1009 0x0000000108904d0c _ZN7webview7webviewC2EbPv + 72
    8   5a78a907fb3b54a23d6ec12156baa6a1009 0x0000000108903afc _ZN7webview7webviewC1EbPv + 56
    9   5a78a907fb3b54a23d6ec12156baa6a1009 0x0000000108903a50 webview_create + 56
    10  deno                                0x000000010325004c ffi_call_SYSV + 76

Presumably that's because it's not on the main thread. I'm unclear on how to make this work so I don't have to block my main thread.

Any thoughts?

[e3ndr]

macOS requires all UI code to run on the main thread, so there's no avoiding that.

The C SDK provides webview.dispatch for executing code on the main thread, so if that got implemented here you could use that to still utilize the main thread.