The new two finger default page gesture is proving rather problematic for the web-app I'm currently working on (which has a workspace larger than the screen which you can scroll around). If you scroll to the left you can accidentally do a page-back and leave the app. Setting a beforeunload handler actually makes the problem worse because the confirmation dialog doesn't appear until the page has completely disappeared, and if you choose to stay on the page, Safari just shows a blank page instead of redisplaying the app.
I don't quite understand the by-default conflation of two actions (scrolling and paging) using two fingers. It's all very well that I can myself change to three finger swipes for paging, but I can hardly instruct all Lion/Safari users to change their system settings. (I understand that a workspace web-app is rather the edge case).
The new two finger default page gesture is proving rather problematic for the web-app I'm currently working on (which has a workspace larger than the screen which you can scroll around). If you scroll to the left you can accidentally do a page-back and leave the app. Setting a beforeunload handler actually makes the problem worse because the confirmation dialog doesn't appear until the page has completely disappeared, and if you choose to stay on the page, Safari just shows a blank page instead of redisplaying the app.
I don't quite understand the by-default conflation of two actions (scrolling and paging) using two fingers. It's all very well that I can myself change to three finger swipes for paging, but I can hardly instruct all Lion/Safari users to change their system settings. (I understand that a workspace web-app is rather the edge case).