關於「Js get user agent」標籤，搜尋引擎有相關的訊息討論：

Browser detection using the user agent - HTTP | MDN2020年12月23日 · Using the user agent to detect the browser looks simple, but doing it well ... or < in any corresponding JavaScript because it is very easy to get ...透過用戶代理偵測瀏覽器- HTTP | MDN2020年9月21日 · 透過用戶代理（user agent）去偵測瀏覽器看似簡單，要做好卻頗為困難。

... 因為很重要所以再說一次：實行用戶代理嗅探（User Agent sniffing）通常不是好主意。

... 因為Javascript 可能把這些東西都混為一談，然後你的網站就會在某些尺寸 ... not find method in CORS header 'Access-Control-Allow-Methods' ...Updating the smartphone user-agent of Googlebot2016年3月15日 · Our renderer evolves over time and the user-agent string indicates that that it is becoming more similar to Chrome than Safari. To make sure your ...Updating the user agent of Googlebot | Google Search Central Blog2019年10月2日 · See Google crawlers (user agents) and Make sure Google can index JavaScript ... In the following user agent strings, W.X.Y.Z will be substituted with ... detect Googlebot via the user agent, then look for "Googlebot" within the user agent. ... join our webmaster office hours on YouTube or follow us on Twitter.How to detect pages when a user browses inside twitter in app ...I don't believe it's possible to detect the Twitter in-app browser in JavaScript, because it uses a generic Web View with no identifiable properties ...Detect twitter app webview by javascript - Stack OverflowDetecting a mobile browser - Stack OverflowHow to detect Safari, Chrome, IE, Firefox and Opera browser ...stackoverflow.com 的其他相關資訊Browser Detection | JavaScript | Determine User Preference - WebFX2014年7月2日 · JavaScript allows for easy browser detection to learn your user's preferences. ... userAgent as the argument var user = detect.parse(navigator.Navigator userAgent Property - W3SchoolsWell organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java ...Freezing User-Agent Strings | CSS-Tricks2020年2月3日 · There's been news about Chrome freezing their User-Agent string (and all ... (that comes across in headers and is available in JavaScript as navigator. ... is still possible to get, via a new thing called User-Agent Client Hints (UA-CH). ... https:// twitter.com/tomwarren/status/1212496687949864961?ref_src= ...Missing iPad tablet web traffic? | 51Degrees2019年8月22日 · In iPadOS 13 with desktop mode enabled the User-Agent is altered to appear as a Macintosh. ... The Web Graphics Language (WebGL) APIs available in JavaScript ... Try getting the renderer string via the conventional debug // extension. ... example will return 'Intel Iris OpenGL Engine' on a real Macintosh.Web View Settings | Tizen DocsThe main features of the Web Setting API include: Setting user agents. You can set a custom user agent string for the running Web application. Deleting cookies.