I am using the built-in preview to check my remote code after I upload it to the server. I do this periodically. Recently I started to notice that if I do it very often after a while my server started to reply with 508. I checked the logs and it seems the AppleWebKit is making several requests at once instead of just 1 normal request. The more I use it seems the more requests it makes. it seems it goes back to normal if kill Textastic and open it again. I suspect the Preview window is not getting killed properly and is running on the background.
Customer support service by UserEcho