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I'm create a mobile website and using jQuery Mobile plugin. In the page, I need to call to a service by ajax and it's synch, while the request is sent and has response, a loading message should be displayed 

It works well with **Firefox**, however with **Chrome**, or mobile device (safari on iOS), the loading message couldn't display, I have change the asynch to false to make it works, it's not what i expected

Following is my draft code

1.     function callService() {
2.      $.mobile.showPageLoadingMsg();
3.      $.ajax({
4.      url: 'testservice',
5.      async: false,
6.      success: function(result) {
7.      // Dosomething
8.      }
9.      });
10.      $.mobile.hidePageLoadingMsg();
11.     }

Anyone have the same issue? any suggestion for this case

I also add the sample on jsfiddle http://jsfiddle.net/ndkhoiits/jvqQJ/