title: why i cannot add breakpoint to code line such as chrome.tabs.query?
body: <p>i can break before chrome.tabs.query lines:</p>
  
  <p><img src="https://i.stack.imgur.com/dAsH5.png"></p>
  
  <p>stop at line 7</p>
  
  <p><img src="https://i.stack.imgur.com/KWMoy.png"></p>
  
  <p>F10 and run to line 9</p>
  
  <p><img src="https://i.stack.imgur.com/0LLGW.png"></p>
  
  <p>F10 and</p>
  
  <p><strong>it does not stop at line 14, it goes directly to line 20, why the break point not works?</strong></p>
  
  <p><img src="https://i.stack.imgur.com/DnoJK.png" /></p>