We have a unique problem only while chatting using IPAD. When you first launch the browser and go to initiate a support chat (as the end user) it places you in the queue.
This pops on the agent side and they have the chance to accept / reject. When the agent accepts the session, however, it is not changing the window on the web chat client side. It leaves them in a spinning waiting for an agent to answer state.
Error in IPAD: The specified call count is not a number (/dwr/call/plaincall/room.getChatQueue.dwr)
Fastpath Webchat is in the discontinued projects subforum as it is long time not in development, so such error will not be fixed (and keeping it compatible with all the possible platforms/browsers combinations needs a team of developers).