I am not able to enable javascript in Chrome. Under Chrome javascript setting the default option for "sites can use javascript" is grayed out. Even if I add website manually under "Allowed to use javascript" the website is not loading, screenshot below.
This happened while I was trying to find a solution for another issue and followed solution from this page (the top answer), so I went to Chrome Devtools > Sources and clicked on the pause button since then the javascript has got disabled. Paused in debugger in chrome?
Note: Javascript is working fine in other Chrome Profiles. The issue is with this particular Chrome Profile.
Try right-clicking the "Sites can use Javascript" option, and inspect element:
Then, remove the disabled or disabled="" attribute from whatever element the console brings you to.
The option should be enabled. Click it and try reloading your site again.
If this doesn't work, you can try reporting any problems for whatever chrome has (I use Mozilla Firefox and I know they have a help center).
Or try re-installing the browser, because some files may be corrupt (don't worry, if you have an account you can sign-in after the reinstallation and everything should be synced).
Chrome, as well as a number of extensions enable you to disable javascript so on your page, but all of them force some type of reload to the page.
I am trying to diagnose a poor scrolling performance issue. I would like to have JS enabled while the content loads and initiates, and then disable it altogether, to check whether the issue is script-based or it's just the heavy page content that's causing the issue.
Is there any way to do this?
You can use the Devtools Command menu to "Disable Javascript" and "Enable Javascript". This was demonstrated recently by Kayce's answer to How to disable javascript in chrome developer tools.
Okay, here's my problem. I wrote some JavaScript for a page, for some reason the page doesn't work in Chrome. The site does what I expect in Opera, Chromium and Firefox. In the Choom devtools there is a kind of error showing in the source tab showing "JavScript is disabled" in a mouse hover popup:
I turned off all chrome's extensions, Javascript in on in the content settings and I cleared all JavaScript exceptions I had, but this didn't seem to change anything. The weird thing (an other one) is that some other sites give the same alert icon in the devtools (including this one) but JavaScript works just fine.
If you perform the exact same functions in the console then, some of, the functions perform just fine.
Does anyone have an idea what I could be because I am out of idea's and it is really annoying that I have to switch browser to test the page (page is 'live' here). Thanks
Have you checked the DevTools settings? You might have accidentally enabled "Disable Javascript"
After updating Google Chrome browser to the latest 15.0.874.106 version (under Windows 7), my site is experiencing some weird flickering bug.
The text shadows are displaying completely wrong, the text itself is fuzzy and unclear, some parts of code don't work anymore (e.g. right floating, fixed menu)... etc.
For a couple of seconds the site is displayed fine, then it flickers all of the sudden (while still loading) and then the rendering gets messed up. (I think it has maybe some problems with loading of Google Maps v3)
The funny thing is that the old version of Chrome (before updating, on my other computer) is still displaying the site without any problems, and there haven't been any changes in the code in the meanwhile.
In other browsers (as i said, even in the old chrome) everything is OK. Firebug and Chrome's code inspector (CTRL+SHIFT+J) don't show any errors in the code. I have been doing some digging on the Internet and here as well, and I havent't found anything useful.
You can check it out by yourself by clicking here
Thanks in advance.
I have done same settings changes as mentioned above post and now, that weird flicker got stopped, below are the details....
Open Chrome Browser
Click on Settings menu option
Click on Advance setting link in Settings page
Un-Check "Use Hardware acceleration when available" checkbox
Restart you chrome browser
Happy Browsing....... :)
Also make sure to disable not only accelerated-compositing, but also accelerated-2d-canvas.
This is how I start google-chrome on Linux:
/opt/google/chrome/google-chrome %U --user-data-dir=/root --disable-accelerated-compositing --disable-accelerated-2d-canvas
On Windows, you might want to omit
--user-data-dir=/root
Josip Filipović apology where to do that (in Win7 by entering -disable-accelerated-compositing in properties > target field) that part disables hardware acceleration.
I'm trying to fix some JavaScript bugs. Firebug makes debugging these issues a lot easier when working in Firefox, but what do you do when the code works fine on Firefox but IE is complaining?
you can also check out the IE Developer Toolbar which isn't a debugger but will help you analyze the contents of your code.
Visual Studio will help with the debugging
Fiddler should help analyse the traffic travelling to and from your browser
You can try Firebug Lite or use Visual Studio to debug the JavaScript.
Since Internet Explorer 8, IE has been shipping with a built-in tool-set for debugging, troubleshooting, and generally helping in development of your pages/applications. You can access these tools by pressing F12 while in the browser.
HTML Tab
The HTML tab will let you peek into the DOM as the browser understands it. As you select elements from the HTML view, their styles will be detailed on the right, with individual rules have the ability to be toggled on and off. You can also modify rules, and determine whether the styles on the element were inherited, or assigned explicitly. Additionally, you can even tell which .css file they originate from.
There is a bit more you can do in the HTML tab, such as review and modify attributes on elements, and even make changes to the layout of the element from within the layout section. Additionally, you can make changes directly to the markup to quickly test out some structural ideas.
Script Tab
For resolving JavaScript issues, you can watch the Console and the Script Tag. If your script stumbles across an a call to an undefined method, you'll be alerted within your console. The console also lets you run arbitrary JavaScript against your page, if you want to toggle items on or off, or try bind a handler to a button.
The Script tab great as well as it will format your JavaScript for you, allow you to insert breakpoints, step in and over code blocks, and watch variables over time.
If you've used Firebug, or even the Webkit Inspector, the F12 Developer Tools in Internet Explorer 8+ should be pretty familiar to you.
Firebug lite doesn't work too well for me. The Developer Toolbar just isn't good enough. There really is no great solution.
Or IE Developer Toolbar
Have a look at DebugBar. License is free for personal use
For the DOM Inspector, try the Internet Explorer Developer Toolbar.
For the Net tab, try Fiddler.
For Javascript debugging, try Visual Web Developer 2008 Express Edition. (Or a higher edition of Visual Studio)
Also, try DebugBar.
Visual Studio 2008 can do JavaScript debugging, you have to go to IE's Tools->Internet Options->Advanced and uncheck 'Disable Script Debugging (Internet Explorer)' in order for the browser to bubble up the errors it detects.
Once you're in Visual Studio you basically have it's entire debugging arsenal at your disposal. It's not as integrated as Firebug, but it is way better than anything we used to have.
i think it is better that you first install the ie core addon in firefox then load the page with ie addon and press f12.
good luck.
Make a bookmark in the favourites bar, and put this address as the URL:
javascript:(function(F,i,r,e,b,u,g,L,I,T,E){if(F.getElementById(b))return;E=F[i+'NS']&&F.documentElement.namespaceURI;E=E?F[i+'NS'](E,'script'):F[i]('script');E[r]('id',b);E[r]('src',I+g+T);E[r](b,u);(F[e]('head')[0]||F[e]('body')[0]).appendChild(E);E=new%20Image;E[r]('src',I+L);})(document,'createElement','setAttribute','getElementsByTagName','FirebugLite','4','firebug-lite.js','releases/lite/latest/skin/xp/sprite.png','https://getfirebug.com/','#startOpened');
Then navigatge to the page you want and click the link. Firebug Lite will/should open up...
The IE8 beta comes with what I think is the IE Developer toolbar, but it seems to be a lot more powerful than the last time I tried the toolbar on IE7
I'm guessing this question was posted before the IE8 final came out, according tho some of the answers.
These days, IE8's inbuilt Developer Tools are great; and while the JS debugging isn't as useful as Visual Studio the Dev Tools in general much better than Firebug in my opinion. Between that and the Compatibility View Browser Mode I can handle all my IE6 development needs.
I found a solution to this problem, you could simply stick this tag to the page you are trying to debug and it will open firebug:
<script type="text/javascript" src="https://getfirebug.com/firebug-lite.js"></script>
Explanation from https://getfirebug.com/firebuglite#Stable
If you're a serious Front-end Developer, give AJAX Edition a test run:
http://www.compuware.com/application-performance-management/ajax-performance-testing.html
It's a free tool that allows users’ to understand what is causing performance and functional-related problems in modern AJAX/web Applications.
In IE, go to MenuBar->Tools
Select Debugger Tools
Hit F12 and enjoy.
It is far from Fire Bug, but suitable for some quick help
There is always a way how to get around this issue, watch the video and you will be able to install firebug in 2 mins.
install firebug on ie
Good luck