使用带有火花的DEAP（遗传算法库）(Using DEAP (genetic algorithm library) with spark)

 这是Chrome中的一个怪癖。 
 
 如果用户在用户单击Web应用程序图标时在其清单中以“独立”方式将Web应用程序添加到其主屏幕，则它将在没有URL栏的情况下打开。 
 
 收到推送消息并打开相同的Web应用程序时，如果用户从主屏幕图标（最近10天）“最近”打开了Web应用程序，则不会显示URL栏。 如果用户在该时间段内没有使用主图标，则会打开通知点击，并显示URL栏。 
 
 在Chrome上查看此问题获取更多信息： https ： //bugs.chromium.org/p/chromium/issues/detail？id = 541711 
 
 特别： 
 
 
 
 Web应用程序必须添加到主屏幕，能够以独立模式打开，并且在过去十天内已从主屏幕打开。 如果没有满足这些条件中的任何一个，则通知将回退到现有行为。 
 
 
 同样值得注意的是，PWA vs Browser本身并不是正确的思维方式。 您总是在浏览器中启动，只是以不同的模式，例如“独立”与“浏览器”。 
 
 PWA（Progressive Web Apps）主要是一个术语，用于描述使用一组API来为新的Web技术（即服务工作者，推送，Web应用清单等）提供良好的用户体验。 

This is controlled by the browser. In addition when deciding to open a window it might be worth checking if the desired target URL is already open in a different tab/window so you can focus or open it, depending on the situation. Check this book here for some code samples.
 
For example in Chrome, if a user adds a web app to their homescreen with "standalone" in their manifest when ever the user clicks the web apps icon it will open without the URL bar.
 
When a push message is received and that same web app is opened, the URL bar will not be displayed if the user has "recently" opened the web app from the homescreen icon (Currently in the last 10 days). If the user hasn't used the home icon within that time period, a notification click will open with the URL bar displayed.
 
See for more info on this Chrome issue here: 
 
Specifically:
 
 
 
The web app must be added to home screen, capable of opening in standalone mode, and have been opened from the home screen within the last ten days. If any of these conditions are not met, the notification will fall back to the existing behaviour.
 
 
It's also worth noting that PWA vs Browser itself isn't the right way of thinking of this. You are always launching in the Browser, just in different modes, "standalone" vs "browser" for example.
 
PWA (Progressive Web Apps) is largely a term to describe a use of a set of API's to make a good user experience with new web technologies (i.e. service workers, push, web app manifest etc).