| Index: lib/devtools.js | 
| diff --git a/lib/devtools.js b/lib/devtools.js | 
| index c94cced25c2cf5b5544c933dd1caf6fc0ab6e558..76b887b0481ba0e5b0fcd15f78ab12b603887b83 100644 | 
| --- a/lib/devtools.js | 
| +++ b/lib/devtools.js | 
| @@ -37,7 +37,7 @@ function hasPanels() | 
|  | 
| function getActivePanel(page) | 
| { | 
| -  let panel = panels[page._id]; | 
| +  let panel = panels[page.id]; | 
| if(panel && !panel.reload && !panel.reloading) | 
| return panel; | 
| return null; | 
| @@ -210,7 +210,7 @@ exports.logWhitelistedDocument = function(page, url, typeMask, docDomain, filter | 
| */ | 
| exports.hasPanel = function(page) | 
| { | 
| -  return page._id in panels; | 
| +  return page.id in panels; | 
| }; | 
|  | 
| function onBeforeRequest(details) | 
| @@ -239,7 +239,7 @@ function onBeforeRequest(details) | 
|  | 
| function onLoading(page) | 
| { | 
| -  let tabId = page._id; | 
| +  let tabId = page.id; | 
| let panel = panels[tabId]; | 
|  | 
| // Reloading the tab is the only way that allows bypassing all caches, in | 
|  |