Detect if webpage request if from browser versus UIWebView

Question

Does a webserver know whether a page request is coming from a webbrowser versus a UIWebView within an app in IOS.

For example, was any webserver able to distinguish between web pages being requested from web browsers versus the Instapaper app on iOS?

Answer 1

Useragent will make the difference. Use the below detection code

var isWebView = /(iPhone|iPod|iPad).*AppleWebKit(?!.*Safari)/i.test(navigator.userAgent);

if(isWebView) {
    alert("Page serving through UIWebView");
} else {
    alert("Page serving through Browser");
}