Javascript Detecting IE11 Version

Question

I'm working on correctly finding client browser version in the code below. Everything works but IE11 version number. I keep getting a value of 5. The browser shows correctly for all version that I tested but IE11. I've tried a few things but I'm stumped. Can anyone help me with what I'm missing, Thank you.

// BrowserInformation
    vm.objappVersion = navigator.appVersion;
    vm.objAgent = navigator.userAgent; 
    vm.objbrowserName = navigator.appName; 
    vm.objfullVersion = ''+parseFloat(navigator.appVersion); 
    vm.objBrMajorVersion = parseInt(navigator.appVersion,10); 
    vm.objOffsetName = '';
    vm.objOffsetVersion = '';
    vm.ix;
    // In Chrome 
    if ((vm.objOffsetVersion = vm.objAgent.indexOf("Chrome")) != -1) {
        vm.objbrowserName = "Chrome"; vm.objfullVersion = vm.objAgent.substring(vm.objOffsetVersion + 7);
    }
        // In IE11
    else if ((vm.objOffsetVersion = vm.objAgent.indexOf("rv")) != -1) {
        vm.objbrowserName = "Microsoft Internet Explorer Version 11"; vm.objfullVersion = vm.objAgent.substring(vm.objOffsetVersion + 10);
    }
        // In Microsoft internet explorer all other versions
    else if ((vm.objOffsetVersion = vm.objAgent.indexOf("MSIE")) != -1) {
        vm.objbrowserName = "Microsoft Internet Explorer"; vm.objfullVersion = vm.objAgent.substring(vm.objOffsetVersion + 5);
    }
        // In Firefox 
    else if ((vm.objOffsetVersion = vm.objAgent.indexOf("Firefox")) != -1) {
        vm.objbrowserName = "Firefox";
    }
        // In Safari
    else if ((vm.objOffsetVersion = vm.objAgent.indexOf("Safari")) != -1) {
        vm.objbrowserName = "Safari"; vm.objfullVersion = vm.objAgent.substring(vm.objOffsetVersion + 7);
        if ((vm.objOffsetVersion = vm.objAgent.indexOf("Version")) != -1) vm.objfullVersion = vm.objAgent.substring(vm.objOffsetVersion + 8);
    }
        // For other browser "name/version" is at the end of userAgent 
    else if ((vm.objOffsetName = vm.objAgent.lastIndexOf(' ') + 1) < (vm.objOffsetVersion = vm.objAgent.lastIndexOf('/'))) {
        vm.objbrowserName = vm.objAgent.substring(vm.objOffsetName, vm.objOffsetVersion); vm.objfullVersion = vm.objAgent.substring(vm.objOffsetVersion + 1);
        if (vm.objbrowserName.toLowerCase() == vm.objbrowserName.toUpperCase()) { vm.objbrowserName = navigator.appName; }
    }
    // trimming the fullVersion string at semicolon/space if present 
    if ((vm.ix = vm.objfullVersion.indexOf(";")) != -1)
        vm.objfullVersion = vm.objfullVersion.substring(0, vm.ix);
    if ((vm.ix = vm.objfullVersion.indexOf(" ")) != -1)
        vm.objfullVersion = vm.objfullVersion.substring(0, vm.ix);
        vm.objBrMajorVersion = parseInt('' + vm.objfullVersion, 10);
    if (isNaN(vm.objBrMajorVersion)) {
        vm.objfullVersion = '' + parseFloat(navigator.appVersion);
        vm.objBrMajorVersion = parseInt(navigator.appVersion, 10);
    }

May I ask [why] you are sniffing browser versions? Also, what is the value of `navigator.userAgent` in IE 11 for you? — Sampson, Jan 14 '16 at 18:39
@Sampson The version number would be for support reasons. navigator.userAgent = "Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; .NET4.0E; .NET4.0C; .NET CLR 3.5.30729; .NET CLR 2.0.50727; .NET CLR 3.0.30729; InfoPath.3; GWX:RESERVED; TNJB; rv:11.0) like Gecko" — fe4rL3ssC0der, Jan 14 '16 at 18:48
Perhaps, if `.indexOf("rv")` is greater than `-1`, you should `ua.match(/rv:(\d+)/)` and grab the value at index 1 of the resulting array? — Sampson, Jan 14 '16 at 18:55

Asons · Accepted Answer · 2016-01-14T20:08:51.520

Here is an update of your script that works

vm.objappVersion = navigator.appVersion;
vm.objAgent = navigator.userAgent; 
vm.objbrowserName = navigator.appName; 
vm.objfullVersion = ''+parseFloat(navigator.appVersion); 
vm.objBrMajorVersion = parseInt(navigator.appVersion,10); 
vm.objOffsetName = '';
vm.objOffsetVersion = '';
vm.ix;
// In Chrome 
if ((vm.objOffsetVersion = vm.objAgent.indexOf("Chrome")) != -1) {
    vm.objbrowserName = "Chrome"; vm.objfullVersion = vm.objAgent.substring(vm.objOffsetVersion + 7);
}
    // In IE11
else if ((vm.objOffsetVersion = vm.objAgent.indexOf("rv")) != -1) {
    vm.objbrowserName = "Microsoft Internet Explorer Version 11"; vm.objfullVersion = vm.objAgent.substring(vm.objOffsetVersion + 2);        
}
    // In Microsoft internet explorer all other versions
else if ((vm.objOffsetVersion = vm.objAgent.indexOf("MSIE")) != -1) {
    vm.objbrowserName = "Microsoft Internet Explorer"; vm.objfullVersion = vm.objAgent.substring(vm.objOffsetVersion + 5);
}
    // In Firefox 
else if ((vm.objOffsetVersion = vm.objAgent.indexOf("Firefox")) != -1) {
    vm.objbrowserName = "Firefox";
}
    // In Safari
else if ((vm.objOffsetVersion = vm.objAgent.indexOf("Safari")) != -1) {
    vm.objbrowserName = "Safari"; vm.objfullVersion = vm.objAgent.substring(vm.objOffsetVersion + 7);
    if ((vm.objOffsetVersion = vm.objAgent.indexOf("Version")) != -1) vm.objfullVersion = vm.objAgent.substring(vm.objOffsetVersion + 8);
}
    // For other browser "name/version" is at the end of userAgent 
else if ((vm.objOffsetName = vm.objAgent.lastIndexOf(' ') + 1) < (vm.objOffsetVersion = vm.objAgent.lastIndexOf('/'))) {
    vm.objbrowserName = vm.objAgent.substring(vm.objOffsetName, vm.objOffsetVersion); vm.objfullVersion = vm.objAgent.substring(vm.objOffsetVersion + 1);
    if (vm.objbrowserName.toLowerCase() == vm.objbrowserName.toUpperCase()) { vm.objbrowserName = navigator.appName; }
}

// trimming the fullVersion string at semicolon/space if present 
if ((vm.ix = vm.objfullVersion.indexOf(";")) != -1) {
    vm.objfullVersion = vm.objfullVersion.substring(0, vm.ix);
}
if ((vm.ix = vm.objfullVersion.indexOf(":")) != -1) {
    vm.ix = vm.objfullVersion.indexOf(")");
    vm.objfullVersion = vm.objfullVersion.substring(1, vm.ix);
    vm.objBrMajorVersion = parseInt('' + vm.objfullVersion, 10);
}
if ((vm.ix = vm.objfullVersion.indexOf(" ")) != -1) {
    vm.objfullVersion = vm.objfullVersion.substring(0, vm.ix);
    vm.objBrMajorVersion = parseInt('' + vm.objfullVersion, 10);
}
if (isNaN(vm.objBrMajorVersion)) {
    vm.objfullVersion = '' + parseFloat(navigator.appVersion);
    vm.objBrMajorVersion = parseInt(navigator.appVersion, 10);
}

Changed the following line:

vm.objbrowserName = "Microsoft Internet Explorer Version 11"; vm.objfullVersion = vm.objAgent.substring(vm.objOffsetVersion + 2);

And added these lines

if ((vm.ix = vm.objfullVersion.indexOf(":")) != -1) {
    vm.ix = vm.objfullVersion.indexOf(")");
    vm.objfullVersion = vm.objfullVersion.substring(1, vm.ix);
    vm.objBrMajorVersion = parseInt('' + vm.objfullVersion, 10);
}

Side note: I do recommend though, to be careful sniffing/detecting like that, as it can easily go wrong.

This is for a private cloud based application, but information will be used for the case that we need to troubleshoot an issue. As of right now we are not supporting certain older versions of browsers at this time. This will help the client provide us with correct version. I also tried your suggestion and still the same result. — fe4rL3ssC0der, Jan 14 '16 at 19:06
vm.objfullVersion = 5 vm.objAgent = "Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; .NET4.0E; .NET4.0C; .NET CLR 3.5.30729; .NET CLR 2.0.50727; .NET CLR 3.0.30729; InfoPath.3; GWX:RESERVED; TNJB; rv:11.0) like Gecko" — fe4rL3ssC0der, Jan 14 '16 at 19:34
For the time being I'm just going to set it to 11 manually. I have other projects that I need to work on. I will check back to try things. I want to thank everyone for helping. If I find a fix I will make sure to post it. — fe4rL3ssC0der, Jan 14 '16 at 19:55

Javascript Detecting IE11 Version

1 Answers1