In Tiger, when you dragged a web archive to a web view, the UI delegate method webView:willPerformDragDestinationAction:forDraggingInfo: was called. We used this to differentiate between a normal load and a dragging load. In Leopard and the latest WebKit, this method is not called.
Created attachment 18365 [details]
Simple App to demonstrate bug
This is a simple app to demonstrate the bug. Once it launches (under Leopard), drag a web archive to the window. Look at the console to see what gets printed. You will see that the webView:willPerformDragDestionationAction:... method is not called.
You can run the same app under Tiger (you will have to change the build settings to target 10.4), and you will see that the method is called.
Created attachment 18569 [details]
Another test case from t. ditchendorf showing issue on leo
I also see this issue on leo. I've attached another test case. This seems very serious, is there any workaround? is my test case missing some vital step to make this work?
Created attachment 18573 [details]
Comment on attachment 18573 [details]
Fix landed r29681