Jquery ui autocompleter not poped up with min characters in ipad

Jquery ui autocompleter not poped up with min characters in ipad

Hello,

I have use jquery ui autocompleter.

It is working fine with on PC. but when I check  my web  with  IPAD 2 mini autocompleter not properly working.

My autocompleter have minchar set as 3. so in PC autocompleter show result when I enter 3 characters.

But in IPAD 2 (IOS 7)( safari)   it didn't open with 3 characters.

for example If i write hel in my iPAD it didnt show me anything.if i enter anything after "hel" then it shows all results starting with "hel".

so how can i fix this so that i get result as soon as i type 3 character.

Thanks
Nirmal