Is it possible to open multiple instances or split view of chrome developer tools tabs?
This is now possible in Chrome 87. Right click Network in the menu and select “Move to bottom” and it will do this
google-chrome-devtools
How to find out the source of a request (in chrome dev tools)?
On the Network panel, you can determine what the initiator of a request was by viewing the Initiator column. It gives you the file, line number and type of resource it was, either Script or something else.
Disable paste protection in Chrome DevTools?
What is it? Ostensibly, it’s this experimental feature in DevTools: If you are a new DevTools user and you attempt to paste code, the Sources panel now shows you the Do you trust this code? dialog and the Console now displays a similar warning. Paste only the code that you understand and have reviewed yourself. … Read more
Accessing console and devtools of extension’s `background` script
You’re looking at the wrong place. These console messages do not appear in the web page, but in the invisible background page (ManifestV2) or service worker (ManifestV3). To view the correct console open devtools for the background script’s context: Visit chrome://extensions/ or right-click the extension icon and select “Manage extensions”. Enable developer mode Click on … Read more
Inexplicit ‘task’ in Chrome Performance DevTools
I ran into a similar issue where I had long, opaque “task” taking several seconds without further information in the Dev Tools. A Chrome dev pointed me towards Perfetto (edit: or you can access a built-in similar tool at chrome://tracing). Perfetto lets you record traces of the internals of Chrome. In my case I suspect … Read more
Is it possible to set custom CPU throttling in Chrome DevTools?
Custom values for Emulation.setCPUThrottlingRate can be set right in Chrome, but you need to open a Dev Tools window on the Dev Tools window to change the setting programatically. Open Dev Tools; make sure it is detached (open in its own window). Open Dev Tools again on the Dev Tools window from step 1 using … Read more
Chrome “Unresponsive Page” false-positive (since Chrome 32)
I started getting this problem as well. In searching, I came accross this issue https://code.google.com/p/chromium/issues/detail?id=335248. As best I figured out, the bug is related to: Windows 7/8 with Aero Theme Scrollbars on pages (such as in the developer console) Pages with popups (in particular Window.open() calls) I guess they are slated to push the fix … Read more
Find definition of CSS class in external stylesheet
If you’re using the Chrome inspector (right click page, inspect element), highlight the line and look to the right. It should show the CSS class and any rules that are used, and a link to the CSS file.
jQuery ajax: how to prevent 404 errors spam in chrome DevTools? [duplicate]
This is not possible programmatically, due to the potential for a script to misuse the blocking or filtering of errors in the console to hide its activities from the Chrome user. You can of course filter messages in the console by Error, Warn, Debug. You can add your voice to those asking for more powerful … Read more
How to reduce/remove memory leaks in Angular application
Remove bindings to avoid memory leaks, Use Scopes $destroy() Method. Note: The most likely culprit of memory leak in Angular is JQuery used in your directives. If you attach an event-listener in your directive using a JQuery plugin, the latter would keep a reference to your DOM even after Angular deletes its own reference to … Read more