title: My chrome browser hint breakpoint in the wrong line when I debug JavaScript code in pages
body: <p>I use google chrome for many years. Recently I use chrome to debug JavaScript code in my project, I just set the breakpoint using chrome dev-tool that these breakpoints seems to be ignored, but the js function certainly be executed. My JS code and the breakpoint position like this picture:
  <a href="https://i.stack.imgur.com/y8dz6.png" rel="nofollow noreferrer">js breakpoint can't be hint</a></p>
  
  <p>When I the breakpoint is hinted, the hint line is the wrong line and the variables are present the message "xxx is not defined":
  <a href="https://i.stack.imgur.com/xYkPB.png" rel="nofollow noreferrer">hint breakpoint in the wrong line</a></p>
  
  <p>My OS is Windows 10, chrome edition is 72.0.3626.119.</p>