I feel like this should be really easy to find if it exists, but I've been googling for 10 minutes. I don't see it mentioned in the official documentation.
I'm trying to troubleshoot a solution to a problem. The solution requires rearranging the order the head child elements.
It's trivial to make that change with Firefox devtools, but I don't know how to view the page with those changes; if I reload (ctrl+r), the HTML goes back to the server version. Does this feature exist?
FWIW, I can find ways of doing this for CSS and JS changes.
There is currently (as of Firefox 92) no such feature of re-applying HTML changes.
What I found is a feature request in Mozilla's bug tracker.
At the moment, the only workaround for this is to directly transfer the changes on the server side script creating the HTML output once you've done them in the Inspector.
Note: It requires some heuristics to re-apply changes to HTML in the browser because the resources served over the network could change in the meantime.
For CSS, the simple DevTools solution is to replace a file entirely by the saved one. For JavaScript, they have some heuristics to recognize where a line moved when code has changed between two reloads. Though those solutions cannot be transferred to HTML easily, as it is generated dynamically most of the time.
If content scripts are specified in manifest.json for Firefox, Firefox will also load content scripts for already opened tabs and execute them even the tabs are already in loaded and ready state.
Google Chrome does not add any content script when extension is installed for already opened tabs. The content script is loaded when the page is refreshed for the older tabs.
I want to ask is Firefox's behavior is expected or bug?
As far as compatibility goes, it's a bug.
Chrome does not do that.
As a result, many extensions implement custom logic to achieve the effect.
One has to take into account side effects. Suppose your content script injects some UI into the page. Then the extension is updated. That amounts to extension restart, and suddenly you have 2 copies of the UI. Also valid if you just attach event listeners, as (at least in case of Chrome) the old content script's context continues to exist (in an "orphaned" state).
The last point is very important and probably the reason why Chrome doesn't do it by default. At some point I made a very long post about this problem - if you're going to report this as a bug to Mozilla, please include that. There's also this feature request that is related.
What would be sensible (and backwards compatible) is to add a parameter to content script description in the manifest - whether to inject into existing pages. It will be up to developers to guarantee that side effects are taken care of. This usually requires even more code to just communicate to the old script that it needs to wind down and clean up.
I'm looking at the download page for ckeditor and I see that the ASP.NET control was last released in 2014. The version string is 3.6.6.2. Does this mean that the control is deprecated? It seems to work properly w/ 4.4.x, but I'm chasing down some weird ckeditor control issues and I wanted to make sure this isn't somehow the cause.
Some of the weird issues I've been chasing
Sometimes when I'm doing a save via form submit, I'll get an exception thrown by the guts of ckeditor: Uncaught IndexSizeError: Failed to execute 'extend' on 'Selection': 1 is larger than the given node's length.
Selecting text in the control prior to save makes it go away
Only happens in Chrome from what I can tell
If I remove the divarea plugin, that makes it go away
I feel like sometimes I'm getting weird errors with it complaining that jquery is missing when I use the asp.net control -- they don't seem to happen under the markup / script based method. I haven't pinned this down yet.
The overall build is the 3.6.6.2 of the asp.net control. The ckeditor build is 4.4.7. There are custom config.js files used in some places and in some places the control is configured by markup in the asp.net control.
I have a script which enters some data in the page and click save button.
Here I used HTML component id for save button.
selenium.click("StudentID:saveData");
I even provided proper wait condition and also tried with X path locator.
The test passes. It doesn't throw any error message but the button is not clicked and the data is not getting updated.
Please let me know what might be the issue .
I had a similar problem and used a CSS selector instead. CSS selectors are much faster than Xpath (and in my experience work better in general, though Xpath is necessary for certain things).
If you are using Firefox, install the Firebug add-on; right-clicking on an element on the page will give you the option to copy CSS path. I've found that I often have to make some changes to it to get it working properly but it allows you to get to very deeply nested elements quickly.
The W3C has a good page on CSS selectors here.
When I debug locally in fire fox 2.0x many times my page won't have the styles added properly or the page will not completely render (the end is seemingly cut off). Sometimes it takes multiple refreshes or shift-refreshes to fix this. Is this a common issue or is it just me? Any solutions?
I want to add that this is happening in fire fox 3.x to me as well. I add my javascript to the pages dynamically and this might be part of the issue. This is when I am working locally with Visual Studio.
Update: This does happen in IE but it happens much more often in Fire Fox. The issue seems to be only javascript and CSS files not loading. For example I get jQuery is not defined, $ is not defined etc. I don't think I have local IIS to test this on but from the server it always works perfectly. Fire Bug shows all my css and javascript files to be requested and received.
This could be a problem with IPv6 and DNS of the Firefox browser. This issue is known to slow down Firefox on localhost:SOMEPORT. The effect would be that some external files won't load (css, js etc.) resulting in a partially rendered page.
You can solve this issue by simply deactivating IPv6 in Firefox:
Insert about:config in the Firefox address bar
Set network.dns.disableIPv6 to true or alternatively add localhost to network.dns.ipv4OnlyDomains
A different way to fix this issue, is to a remove the ipv6 address from your hosts file this way: open the file
C:\Windows\System32\drivers\etc\hosts
(with administrator privileges) and remove (or comment out #):
:: localhost
Make sure that you narrow the scope of the problem. Does the problem just happen when debugging from VS or does it also happen with local IIS? With server-based IIS? Does it happen to other developers in your company? Is it really just FireFox or does it happen to Chrome, Opera, IE, etc?
Assuming that you've already worked that all out, I would suggest installing a FireFox plug-in called "Tamper Data". Open that and refresh the page. You'll see a record of every connection from the browser to the server (for each html file, image, css file, etc). Look to see if any of the them are very slow or not completing (perhaps one of those files is taking a long time and FF is waiting for it to finish before loading other important files).
Assuming that all of the files correctly loads, you should consider checking that the syntax is valid (maybe there is some unclosed tag or quotation mark that is causing FF confusion). I use a plugin called "Web Developer", but there are a lot of other options out there.
You could also use a plugin called FireBug to view the HTML behind various parts of the page to see if there are any noticeable problems. You start FireBug, go to the HTML tab, click Inpsect, and move your mouse over something on the page, and it will show you the HTML behind it.
One thing to do would be to check the source of the page(s) in question. My guess would be that the local server that VS runs is not giving you the entire source of the page. One way to verify this would be to run exactly the same code in the debug environment, as well as from a "real" server like IIS 6. If the same behavior is seen on loading the page from both servers, as well as insuring that the full page source is being recieved by the browser(s), then it is a bug in Firefox and should be reported. This is especially true if other browsers, ie. IE, Chrome, Safari, Opera, render the page fully.
Are you comparing what you see in Firefox to what is displayed in the Visual Studio designer? If this is the case, then they are using 2 different methods to render the html and may not display the same.
Anything further on this folks?
I have examined the traffic using Firebug and it appears that when veiwing the response from the request for a style sheet, the response is just blank. After refreshing (sometimes multiple times) the age displays correctly and the response information contains the style sheet. I have not seen this in any other browser and it only occurs when viewing the app from Visual Studio.
2! Recently i had the same problem. Im using MVC 1.0 and I added a new stylesheet into Views/Share folder. And when i run the project, the page didnt render along with the css. If your web project is a MVC one so try put the css file into the Content folder.
Hope this help.
HaiVu.Doan.
In case anyone else finds this with newer versions of Visual Studio, I have to run VS as Administrator. This is something I keep forgetting to do, but once I right clicked on Run as Administrator when opening VS, the problem went away.
Initial problem, I could not get CSS to render when running a project from VS 2012 using Firefox as the browser. (IE worked just fine, btw.) The content would be there, but no CSS. This was the first post I found when I typed in my question.