javascript - Ajax request on PhoneGap faster on 2G then 3G -


while developing phonegap application ios , android found strange behavior. uploading file server faster via 2g 3g.

this difference 265 kb file:

  • 2g: 0m 32s
  • 3g: 7m 21s

of course did run speedtest (with speedtest.net app) on iphone:

  • 2g: down: ~4 kb/s; up: ~2 kb/s
  • 3g: down: ~280 kb/s; up: ~110 kb/s

this code in phonegap app:

// base64 encoded image of 265kb var base64img = "data:image/jpeg;base64,/9j/4aaqskzjrgabagaaaqa...";  $.ajax({     type: 'post',     url: 'http://my.server.nl',     data: {img: encodeuricomponent(base64img)},     datatype: "json",     contenttype: "application/x-www-form-urlencoded;charset=utf-8" }).done(function(result){     console.log('done: ' + result); }).fail(function(result){     console.log('fail: ' + result); });

which genius can tell me why happening?

we solved problem uploading stuff via 'slow' 3g.

the problem different. used vodafone mobile operator, tried operator (*bliep) , working well. vodafone problem. found out vodafone modifying headers. changed connection: close connection: keep-alive.

now using ssl (https) connection, vodafone can't change headers. haven't had problems after changing ssl.


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