Why am I getting error for apple-touch-icon-precomposed.png

Question

I have created a new rails3 project but I am seeing following logs many times in my server logs. Why I am getting these request and how can I avoid these?

Answer 1

Same thing is happening for me. And yes, as @Joao Leme said, it seems it is related to a user bookmarking a site to their device homescreen.

However, I noticed that even though there is an error in the log, it's happening behind the scenes and the user never sees the error. I assume the device makes a request for the touch-icon specific to its resolution (which isn't there) until defaulting to the general apple-touch-icon or apple-touch-icon-precomposed, if present, or else generates a small screenshot of the current page.

FWIW, put the icons in the /public directory.