I want to see how stuff works on a website, but each time I open Devtools (or refresh the page), I get an alert saying Devtools is open. It blocked me from using Devtools, so I want to disable this feature.
So, I searched how to "jam" google chrome Devtools and got these results:
Find out whether Chrome console is open
https://coderwall.com/p/iktwug/detect-if-chrome-devtools-are-open
https://github.com/sindresorhus/devtools-detect
But I can't find any information about making Devtools Undetectable or disabling this code. Tried undocking Devtools, didn't work.
This is their code blocking me from using Devtools:
https://hastebin.com/oxopowiduy.php
What should I do to make Devtools Undetectable?
In Chrome 73+ it's possible to open devtools before the page can run any code to detect it:
open chrome://inspect
click "Pages"
click "pause" on an entry for the tab you want to debug
Now you can inspect the page, find out how exactly it detects devtools, and defuse it. Judging by the code in your question, you can run window.uomg.create.onchange = null, but if not, set breakpoints in the code and debug it to find out a working method.
Based on this answer:
Find out whether Chrome console is open
The answer to your question is "No" - the sites are probably using jscript to detect the console is open and you will not be able to send back a false negative.
When Chrome stops WebGL and gives you the following error (in a yellow banner on top of the screen): "Rats! WebGL hit a snag...", and reloading does not work (WebGL is still not re-enabled), is it possible to re-enable WebGL without restarting Chrome?
Context:
Chrome disables WebGL probably because it requires too many resources: I ask it to display 400,000 billboards on Cesium, for those who know what this is.
I know how I could reduce the resources my app asks for, but actually I am exploring its limits for testing purposes. So I am going to make Chrome disable WebGL a lot of times, and I do not want to restart it everytime it disables WebGL.
My configuration:
Chrome 35.0.1916.114 m
Windows 7 Pro 64 bit.
Solutions explored:
I already tried to open a new Chrome window, it does not work. For the moment all I can do is close all Chrome windows and restart it.
I already tried to put --ignore-gpu-blacklist in the Chrome shortcut (even if I understood this is for Windows XP, right?).
Hope I was clear enough.
Thank you for your help.
I was having the same problem and I just found a solution. It sounds like this didn't work back when this question was posted but, it works now!
Refreshing the page doesn't work. If you clicked a link from a different tab to open the tab the crashed, clicking that link again doesn't work. You have to open a new tab and paste in the URL of the page that you want to reload.
I'm guessing this is due to chrome threading... by opening a brand new tab, you create a new thread instead of using the existing one.
In your application you should properly handle webglcontextlost and webglcontextrestored events. In particular, you should prevent default event action in webglcontextlost handler thus telling the browser that you can restore proper functioning of your app when webglcontextrestored will be fired.
I have a screen full of code that displays for about half a second on loading some pages in chrome.
I managed to grab a screenshot of it.
I think this one is from a google search for the London tube map.
I have disabled chrome extensions and antivirus but it still appears.
Does anyone know what this is?
In this particular instance the code is generated by Bitdefender Traffic Light extension. If the antivirus is installed, the extension seems to be enabled without being displayed in Chrome's list of extensions.
Disabling the antivirus doesn't seem to disable the extension. But you can clearly see it is activated in a google search as each link has a specific icon next to it.
Other extensions might do a similar thing, but in the lower-left part of the screenshot, the code is:
fraud_link = "http://trafficlight.bitdefender.com/info?url={URL}&language=en_US";
Which makes it obvious this extention is causing the code to be displayed.
With Chrome 32.0.1700.77 the new emulator tab is handy except it's the default tab when I refresh my page.
During my standard development workflow, I constantly refresh the page when I make changes. I usually have the console window open at the bottom of the network or source views. But every single time I refresh the page, the Emulators tab takes focus and I can't see the console.
This is truly annoying since the app will fail because of a simple JavaScript typo, but I can't see the console without clicking one more time (to focus the console tab).
Has anyone found a workaround for this?
Combined with the Chrome Developer Tools unresponsive since update 32.0.1700.76 m issue, I would have to say Google really tripped up this release.
Unfortunately there doesn't seem to be a workaround yet. It looks like there has been a bug reported to Google as found on this thread, but no fix has come about yet.
I think the only way (right now) to prevent the console tab from being hidden when needed is to avoid using the emulator or revert to a previous version of Chrome.
Hopefully a fix comes soon!
It's been a while since this post was made, but I came across the same issue recently. When you have the developer toolbar open, the phone icon beside the "Elements" tab should be blue. Clicking that will disable Emulation.
source: https://groups.google.com/d/msg/google-chrome-developer-tools/g_93_bKmaiA/SdHk0aXdEo4J
I really like the ability to edit javascript in the chrome debugger however, I find that it can be really problematic getting the debugger to re-fetch the JavaScript from the server.
Sometimes I have to go as far just closing the debugger and reloading the frame works OK - but other times (an dI cannot pin down under what conditions this occurs) I have to clear my temporary internet cache. Sometimes I swear I have to close chrome completely, then clear the cache and then load the page before the debugger finally shows me the most up-to-date script.
(NB. There is no caching of the script by the web server)
I was wondering if anyone knew of a quick and easy way to tell the debugger to invalidate all its javascript and fetch it all anew on page reload?
While you are developing your script, try disabling the Chrome cache.
When you reload the page, the JavaScript should now get refreshed.
Chrome circa 2011
Chrome circa 2018
You can also access it on the network tab:
The context menu shown above is accessible by right clicking / presssing & holding the "reload" button, while Chrome Dev Tools is opened.
Empty cache and hard reload works best for me.
Another Advantage: This option keeps all other opened tabs and website data untouched. It only reloads and clears the current page.
You can always clear a specific file by doing the following:
Open Dev Tools
Click on the Sources tab
Find your script / image / file
Check the right panel to see if your file is up to date
If not:
Right click the resource in the left panel and choose 'Open Link in New Tab'
Force a reload of the resource with the methods above. (See #Bishoy Hanna's example)
This is very handy if you have resources that are in frames and CTRL+F5 is not force refreshing them.
Shift+F5 quickly clears the cache.
Here's a shortcut to DevTools:
F12 to open Chrome DevTools
F1 to open DevTools Settings
Check Disable cache (while DevTools is open) as shown below:
Note: Updated per Dimi's comment. They tend to move it so let me know or update the post if you notice that it's changed.
For Google chrome it is not Ctrl+F5. It's Shift+F5 to clear the current cache! It works for me !
On Windows, Ctrl+Shift+r would force reload the script in chrome.
If you are making local changes to a javascript in the Developer Tools, you need to make sure that you turn OFF those changes before reloading the page.
In the Sources tab, with your script open, right-click in your script and click the "Local Modifications" option from the context menu. That brings up the list of scripts you've saved modifications to. If you see it in that window, Developer Tools will always keep your local copy rather than refreshing it from the server. Click the "revert" button, then refresh again, and you should get the fresh copy.
It seems as the Chrome debugger loads source files into memory and wont let them go despite of browser cache updates, i.e. it has its own cache apart from the browser cache that is not in sync. At least, this is the case when working with source mapped files (I am debugging typescript sources). After successfully refreshing browser cache and validating that by browsing directly to the source file, you download the updated file, but as soon as you reopen the file in the debugger it will keep returning the old file no matter the version from the ordinary browser cache. Very anoying indeed.
I would consider this a bug in chrome. I use version Version 46.0.2490.71 m.
The only thing that helps, is restarting chrome (close down all chrome browsers).
Right click on reload button in chrome and click "Empty Cache and Hard Reload"
If the files which you are loading are cached and if the changes you have made does not reflect in the code then there are 2 ways you can deal with this
Clear the Cache as everyone told
If u want Cache and only the files have to be reloaded , you can go to network tab of the dev tool and clear whatever was loaded. next time it will not load it from cache. you will have your latest changes.
There are also 2 (quick) workarounds:
Use incognito mode wile debugging, close the window and reopen it.
Delete your browsing history
Deactivating Breakpoints caused the new script to load for me.
In my opinion it's easiest to work in a 'private browsing session' of chrome, to ensure that your javascript files don't come from the cache.
If there is document on URL:
file:///C:/Users/user/Desktop/site/index.html
Add any parameter to your URL, like this:
file:///C:/Users/user/Desktop/site/index.html?foo=777
and the browser'll refresh all sites resources
You can also use this Chrome extension to quickly switch between using or not the cache: https://chrome.google.com/webstore/detail/cache-killer/jpfbieopdmepaolggioebjmedmclkbap