jquery - Hammer.js: clicking on SVG element to start javascript not working in iPhone Safari -

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i'm trying make element in svg clickable in order call javascript function (in case alert function, can generic function). svg embedded in html page through object tag.

svg

<?xml version="1.0" encoding="utf-8"?> <!doctype svg public "-//w3c//dtd svg 1.1//en"     "http://www.w3.org/graphics/svg/1.1/dtd/svg11.dtd"> <svg version="1.1" xmlns="http://www.w3.org/2000/svg"     xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewbox="0 0 1024 768"     enable-background="new 0 0 1024 768" xml:space="preserve">     <g id="livello_4">          <a xlink:href="javascript:alert('working!');" onclick="javascript:alert('working!');" target="_top">             <use xlink:href="javascript:alert('working!');"></use>             <rect class="hover_group" id="piazza" x="481.5" y="265.7" fill="#000000"                 stroke="transparent" stroke-miterlimit="10" width="127.8" height="88.7"/>         </a>      </g>     <style>         .hover_group:hover{         fill: rgba(255,0,0,0.75);         }     </style> </svg>

html

<!doctype html> <html lang="en"> <head>     <meta http-equiv="content-type" content="text/html; charset=utf-8" />     <title>title</title>     <link rel="stylesheet" type="text/css" href="styles/main.css" />     <script src="//cdn.jsdelivr.net/jquery/1.11.1/jquery.min.js"></script>      <script type="text/javascript" src="js/svg-pan-zoom.js"></script>     <script type="text/javascript" src="js/hammer.js"></script>      <script>       window.onload = function() {         var eventshandler;          eventshandler = {           halteventlisteners: ['touchstart', 'touchend', 'touchmove', 'touchleave', 'touchcancel']         , init: function(options) {             var instance = options.instance               , initialscale = 1               , pannedx = 0               , pannedy = 0              // init hammer             // listen pointer , touch events             this.hammer = hammer(options.svgelement, {               inputclass: hammer.support_pointer_events ? hammer.pointereventinput : hammer.touchinput             })              // enable pinch             this.hammer.get('pinch').set({enable: true})              // handle double tap             this.hammer.on('doubletap', function(ev){               instance.zoomin()             })              // handle pan             this.hammer.on('pan panstart panend', function(ev){               // on pan start reset panned variables               if (ev.type === 'panstart') {                 pannedx = 0                 pannedy = 0               }                // pan difference               if (ev.type === 'pan' || ev.type === 'panend') {                 console.log('p')                 instance.panby({x: ev.deltax - pannedx, y: ev.deltay - pannedy})                 pannedx = ev.deltax                 pannedy = ev.deltay               }             })              // handle pinch             this.hammer.on('pinch pinchstart pinchend', function(ev){               // on pinch start remember initial zoom               if (ev.type === 'pinchstart') {                 initialscale = instance.getzoom()                 instance.zoom(initialscale * ev.scale)               }                // on pinch zoom               if (ev.type === 'pinch' || ev.type === 'pinchend') {                 instance.zoom(initialscale * ev.scale)               }             })              // prevent moving page on devices when panning on svg             options.svgelement.addeventlistener('touchmove', function(e){ e.preventdefault(); });           }          , destroy: function(){             this.hammer.destroy()           }         }          // expose window namespace testing purposes         window.panzoom = svgpanzoom('#map', {           zoomenabled: true         , controliconsenabled: true         , fit: 1         , center: 1         , customeventshandler: eventshandler         });       };     </script> </head> <body> <div id="sect-map" class="section" style="height:500px;width:100%;">     <object style="height:100%;width:100%;" id="map" type="image/svg+xml" data="test.svg">         browser not support svg     </object> </div> </body>

from chrome , firefox (desktop , android) alert called, while doesn't happen on safari ios. missing?

edit: commented line

this.hammer.get('pinch').set({enable: true})

and alert started working on iphone. fact is, need pinch enabled, cannot remove line.

for reason safari ios ignores tapping when pinch enabled. had add block inside init function make detect tapping.

this.hammer.on('tap',function(ev){     $(ev.target).click(); })

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