How do you copy the entirety of the "frames" tab when inspecting a web socket in Chrome Developer Tools? Whenever Ctrl A, then Ctrl C, it only copies what is currently visible on my screen, not everything in the tab.
I can reproduce this annoying problem too. I will look into getting a fix for this in a future release of DevTools. In the meantime, I came up with a method of getting the data out of DevTools.
Open up DevTools in un-docked mode and navigate to the Frame panel.
Open up DevTools inspector using Cmd+Opt+I (Mac) or Ctrl+Shift+I (Windows)
Inspect the Frame panel, select the table element, and then right-click and select Copy > Copy outerHTML
Paste into your text editor and save it as an HTML page.
Open it up in the browser to view the table, which you can copy without restriction.
Update:
Before you Copy the contents of the HTML in step 3, you need to run the following code in the Console of the DevTools inspector (not the page one). The reason is that the rows in the table are only rendered when they are visible in the view port, based on size and scroll position. This explains a lot. The code below will override the __calculateVisibleNodes function to return the un-filtered list of nodes rather than reducing it to 11 items at a time.
WebInspector.ViewportDataGrid.prototype._calculateVisibleNodes = function() {
return { visibleNodes: this._flatNodesList()};
}
Note: You will need to re-open DevTools again later as this change will mess with other features.
Related
This question is similar to How can I inspect disappearing element in a browser?, except it's the reverse.
I'm trying to debug which JS adds a bunch of rogue <iframe> aswift_1, aswift_2, etc. elements to the page, like so:
I'd like to use Chrome Devtools (or Firefox) to pause execution as soon as such an element is added and inspect the call stack, hopefully finding the culprit.
Other ideas are welcome as well.
You can use this simple chrome extension.
It will trigger the debugger AFTER element with id matching aswift_ is added(of course you need to open chrome dev tools first).
https://gist.github.com/maciejmackowiak/8043c8630004644144711f730ef45f1b
To activate this extension download -> unpack, open manifest.json and in line 8 change the example.com to the domain you want to inspect.
Then go to chrome://extensions/
Click on Developer mode and Load unpacked
When you will go to the page maching the domain this should show up after element with id starting with aswift_ is added:
Paused in debugger
Now you can use "step over next function call(F10)" (you may need to hit it few times before it will loop thru all mutations and "go" to another function)
Quickest way in chrome would be to take a look at either the network tab (for response) or do a global search using Ctrl+Shift+F on Windows and look for certain tags used in those elements which are being added to the DOM
Chrome DevTools has a handy inspector for Local Storage and Session Storage, but is there nothing to inspect chrome.storage.sync?
chrome://sync-internals/ doesn't seem to display the actual contents of the synchronized storage per extension.
Storage Area Explorer extension provides a UI for viewing, editing, clearing, importing and exporting of chrome.storage.local, chrome.storage.sync, localStorage and sessionStorage.
In the future this feature may be implemented natively: https://crbug.com/848752.
Warning for ManifestV3: since devtools for service worker doesn't show storage, you'll have to open any visible page of your extension like the popup or options, right-click the page, then click "inspect", then go to Storage Explorer. If your extension doesn't have any visible pages, you can open chrome-extension://ID/manifest.json where ID is the id of the extension as shown in chrome://extensions page. Another method is to right-click any script from your extension in devtools (when you inspect the content script or service worker), then click "Open in a new tab". You can add a bookmark for this tab to open it quickly next time.
Visit chrome://sync-internals/
Click Sync Node Browser tab and wait for it to load (may give a blank screen or in progress cursor)
Click expansion triangle in the sidebar for Extension settings
Click on individual settings in the sidebar to see their values and other metadata
A poor workaround is to call get and obtain all the stored values. Of course, this doesn't let you conveniently edit them:
chrome.storage.sync.get(null, function callback(items) { console.log(items) });
I have a rogue blank <div> getting inserted from somewhere in my code, and it is difficult to find when it is coming in. I am using debugger; and stepping through the code, however, the step function is in the 'Sources' tab of chrome dev tools, and the 'Elements' tab has the view I need. I have two screens, and have the dev tools on one screen and the page on the other, but I need to see when the div is coming through on the HTML as I step through the code, and it is quite cumbersome to switch tabs after each click.
Is there any way to accomplish this view to troubleshoot faster (maybe a second instance of dev tools? or split the tabs?), or another suggestion? Since I don't know how it is getting generated, I can't color the div and just look for the color to come on screen...
It is still not possible to display the elements and source tabs at the same time on chrome dev tools. (Latest Chrome version: v64).
If some element is inserted to your DOM and you want to find code responsible for adding it then I suggest using more appropriate tool than debugger;. Check out "subtree modifications":
You can now right click the view tab and select "Move to bottom" so you can see both element and sources at the
Now its possible to view the element and page source in the same page.
Follow the steps below:
Open debugger or Ctrl+Shift+C
From Right corner press the "customize and control Dev tools" icon, under those option click show console drawer:
Now from the left bottom, click on the quick source option as shown in picture:
All the js files opened in sources will be seen here:
When I add mouse event breakpoint, devtools always jump into extension's JS.
Is there any way to point to my mouse event code directly?
The only way to disable the script (e.g. to avoid side-effects) is by disabling the extension (for instance, by using incognito mode if the extension is not enabled in incognito mode).
If you don't mind the scripts to run, but want to ignore extension code, then you can use the script blackboxing feature of Chrome's devtools.
If you never develop extensions and aren't interested in stepping through it, then open the settings menu of the devtools, click on Blackboxing and then the "Blackbox content scripts" checkbox:
If you only want to selectively ignore files, then you can also right-click on the source of the file that you want to ignore, and click on the "Blackbox Script" contextmenu option. To remove the pattern, go to the "Blackboxing" settings panel as shown before.
I think the simplest way is to open an incognito window (Ctrl-Shift-N) (or Cmd-Shift-N for mac) and debug in there, because then there will be no extensions loaded (by default).
I know what you mean by this question: when debugging, and doing something simple like pausing execution, you always find it breaks into one of the extension's codes instead of the current webpage's code.
open developer tools, then go to settings and then click on ignore list, and check the checkbox for add content script to ignore list, then add this to the ignore list: ^chrome-extension://
If you're using Google Chrome (or any Chromium-based browsers), simply run a new browser instance with a fresh user's data directory.
On Linux:
google-chrome --user-data-dir=$(mktemp -d)
This way, all extensions will be disabled without having to manually switch off/on them.
I like to use Profiles for that.
While changing into incognito mode might help you to disable most of the extensions, some of them might be allowed and still run. For example I have DarkReader and Ublock enabled in incognito mode.
My favorite workaround is to use a "Guest" profile or to create a profile that you can use for debugging. I think it is easier than creating a Framework Ignore List inside of devtools.
How to create a profile: https://support.google.com/chrome/answer/2364824
Example: My debugging profile
First off you should probably review the tutorial on how to debug chrome extensions here:
http://code.google.com/chrome/extensions/tut_debugging.html
When in doubt, you can always use the debugger keyword directly in the JavaScript code where you want to launch the debugger from, like so:
element.addEventListener("mouseover", function() {
debugger;
// some JS handler code...
});
Depending on if your JS is in a popup, background page, or in a content script, you will need make sure you launch the dev tools from the right place.
For a popup, you need to right click on the extension icon and "Inspect Popup" and then from the JavaScript console you would need to run location.reload(true)
For a background page, you need to go to the extensions settings page, chrome://settings/extensions, turn on developer mode, expand the extension in question and click the background page link.
The content script should be visible directly from the page it is loaded onto.
How to remove all breakpoints in one step in Google Chrome? Using version 11.
[update]
There is now a feature request for this.
[update]
The feature request is closed (Dec 2011)!
This is now possible in Sources tab of Chrome Developer Tools.
Please see screen grab below and right click within the "Breakpoints" section of the left window.
Since recently (Chrome 18), you can right-click any breakpoint in the Breakpoints pane and voila! The "Remove All JavaScript Breakpoints" popup menu item!
Chrome Devtools crashed everytime I tried to access the Sources panel because of a breakpoint on a minified Javascript file.
To remove all breakpoints without access to the interface, you can do the following:
Open inspector-on-inspector : undock first inspector and hit ctrl+shift+i to open the second
On the inspector-on-inspector console, execute the following:
window.localStorage.breakpoints = [];
Close the inspectors and reload the page. Now the breakpoints are gone.
Under Sources, you can click button marked with red on picture below or use shortcut Ctrl + F8 just like tool tip is showing (activate / deactivate breakpoints). A little bit lower under 'Breakpoints' you will see all your breakpoints. If you choose to disable all, they will be grayed out.
solution here.
To purge all breakpoints open inspector on inspector (undock first
inspector and hit ctrl-shift-I to open the second) and run
"WebInspector.settings.domBreakpoints.set([])" in second inspector's
console.
new Tabs; Ctrl+Shift+J to Console; Access URL
Open the Chrome task manager and end the tab page.
Ctrl+Shift+J to Application -> Service Workers (Offiline) -> Refresh
to Sources Cancel Breakpoint
Success
Another option is to de-activate all break points using:
Ctrl + F8
In my case Uninstall and new installation of Chrome was without any success.
Also window.localStorage.clear() did not help.
My "last chance solution" is to remove entire directory where Chrome is storing its data.
First turn off your Chrome.
Then look at this path "c:\Users\ {your_user} \AppData\Local\Google\Chrome\User Data\Default\Local Storage\". Here try to delete all what is in this directory.
You can also clear all inspector settings and reload the inspector. It helped me with fantom breakpoint I could not remove in any other way. Open inspector and go to Preferences -> Sync -> Restore defaults and reload (at the bottom).
Step 1: Go to Developer tools and expand Breakpoint section
Step 2: Right click on expanded area of breakpint and there will be many options lik