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#Stay Standalone

A short script to prevent internal links to a "webapp" added to iPhone home screen to open in Safari instead of navigating internally.

(function(a,b,c){if(c in b&&b[c]){var d,e=a.location,f=/^(a|html)$/i;a.addEventListener("click",function(a){d=a.target;while(!f.test(d.nodeName))d=d.parentNode;"href"in d&&(chref=d.href).replace(e.href,"").indexOf("#")&&(!/^[a-z\+\.\-]+:/i.test(chref)||chref.indexOf(e.protocol+"//"+e.host)===0)&&(a.preventDefault(),e.href=d.href)},!1)}})(document,window.navigator,"standalone");
<!DOCTYPE html>
<html>
<head>
<title>stay standalone</title>
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="viewport" content="width=device-width,initial-scale=1.5,user-scalable=no">
<script type="text/javascript">
(function(document,navigator,standalone) {
// prevents links from apps from oppening in mobile safari
// this javascript must be the first script in your <head>
if ((standalone in navigator) && navigator[standalone]) {
var curnode, location=document.location, stop=/^(a|html)$/i;
document.addEventListener('click', function(e) {
curnode=e.target;
while (!(stop).test(curnode.nodeName)) {
curnode=curnode.parentNode;
}
// Condidions to do this only on links to your own app
// if you want all links, use if('href' in curnode) instead.
if(
'href' in curnode && // is a link
(chref=curnode.href).replace(location.href,'').indexOf('#') && // is not an anchor
( !(/^[a-z\+\.\-]+:/i).test(chref) || // either does not have a proper scheme (relative links)
chref.indexOf(location.protocol+'//'+location.host)===0 ) // or is in the same protocol and domain
) {
e.preventDefault();
location.href = curnode.href;
}
},false);
}
})(document,window.navigator,'standalone');
</script>
</head>
<body>
<p><a href="http://google.com/">google</a></p>
<script type="text/javascript" charset="utf-8">
// NEVER user document.write, unless for test porposes.
document.write('<p><a href="http://'+document.location.host+'/test/">Same domain</a></p>')
</script>
<p><a href="/test/"><span>absolute path</span></a></p>
<p><a href="javascript:alert('alerts should work')">alert</a></p>
<p><a href="test_page.html">relative path</a></p>
<p><a href="/test?http://othersite.com">http not on beginning</a></p>
<p><a href="#test">anchor</a></p>
<p><a href="tel:+1234512345">This link fires a call</a></p>
<p><a href="mailto:me@example.com">Mailto</a></p>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<title>stay standalone</title>
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="viewport" content="width=device-width,initial-scale=1.5,user-scalable=no">
<script src="compressed.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>
<p><a href="javascript:location.href=document.referrer">javascript:location.href=document.referrer</a></p>
<p><a href="javascript:history.go(-1)">THIS DON'T WORK: javascript:history.go(-1)</a></p>
</body>
</html>
MIT License
===========
Copyright (c) 2009–2011
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
BSD License
===========
Copyright (c) 2011
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the Organization nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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