I am trying to use the flXHR javascript library for making cross-domain calls.
I got stuck at the begining.
As they say in the docs, I copied the /deploy directory's content to a /scripts directory.
All the dependencies are supposed to be included in the flXHR download.
This is my html, which returns several errors:
the errors:
y.base_path is undefined
y.checkplayer is undefined
y.ua is undefined
E.attachEvent is not a function
thanks
flXHR is tested and works (AFAIK) on all major browsers' latest released versions. I don't revalidate the test-suite every single new release of any browser, but I do so from time to time.
With respect to the "base_path is undefined" error... the problem is not with flXHR (or CheckPlayer), but with how Firebug traps for JS errors.
I have a try/catch block around access of that variable, and if it's not present, then I take an alternate action. From a normal JS perspective, this is not a JS error, because the try/catch block catches it and deals with it. But Firebug still registers it as an error. This error is erroneous, and as far as I know is not going to affect any behavior in the rest of your code.
Again, to my knowledge, flXHR is currently working in all browsers. If you have issues, please visit the flXHR forum on http://flXHR.flensed.com.
I noticed the "y.base_path is undefined" error sometimes, but only when Firebug is open. Try closing firebug (or use a different browser) and see what happens.
Related
For almost every page I open in Firefox, I see this error in the Console of the developer tool bar:
(!) The Components object is deprecated. It will soon be removed.
The source is the html page. It happens with pages I create, but also on many common websites.
I found this documentation on Components object on MDN web docs, but that does not clarify a lot. Note that even that page shows this message(!)
It looks like a warning, but according to the Console filter, it is an error.
My main questions are:
Is this something for me, as a developer of the page reporting this, to solve?
If so, how do I go about that?
I am not aware of any problems as a result of this. For now, that is.
I have seen this for over a year, maybe longer. I mostly ignore this, but every now and then it starts nagging me again. I don't want my code to break suddenly and would like to get rid of this message obscuring other messages.
This is not for the developer of the page to solve.
While biking back home, a possible cause popped up in my mind: could one of the add-ons I use cause this and yes, that appears to be the case.
I restarted with disabled add-ons and the message was gone.
Then I enabled them one at a time and the culprit is
Selenium IDE.
A bug report on this issue was closed with Won't fix, with the message:
This error will resolve itself when we move to a native app later this year.
In a MozillaZine topic of 2012, it is explained how it could have been solved.
The first one is just a warning that the addon is using "Components"
directly, which won't necessarily always be possible when using the
Add-on SDK. (The preferred way to do it is to access the aliases for
Components.classes and Components.interfaces and such that the SDK
provides by requiring the "chrome" module.) It shouldn't be a problem
right now, but might become one in the future.
it happened for me after installing Selenium plugin in my FireFox.
First off, ScintillaNET v2.6 was installed as a control and I have been able to use it and compile, so I assume the installation is ok:
This app is targeting the full .NET 4.0 framework, not the client profile)
Environment variable
ScintillaNT folder content
The error message:
The code triggering the error:
The error happens on the second line when I "step-in" the load method. Looks completely unrelated, but highly reproducible: the error always happens at that exact step.
The problem turned out to be a corrupted XML file. I still don't know why the crash page was all about ScintillaNET, but it appears this had nothing to do with Scintilla.
I am not deleting this question because I could not find any indication that this could happen (errors in different parts of the code triggering a Scintilla error page) and it would have saved me a lot of time trying to track back the "scintilla" problem.
So I'm working with RequireJS and BackboneJS. I can get everything to work fine in Chrome but when I load up in Firefox I'm getting that lessc is not defined. Obviously pulling out the less files will prevent the error from occurring. Does anyone have any ideas why require is unable to load lessc in firefox but its doing fine in chrome?
Screenshot:
http://screencast.com/t/WenocFdCA0V
Video w/ lessc not being defined in Chrome but not Firefox
http://screencast.com/t/ac96qZrpQb3R
Let me know what other info may be useful.
Thanks in advance!
Seth
less.js is broken, because it uses loadStyles before it defines it, and Firefox stopped hoisting functions according to the spec. There are probably more such mistakes, but this is the first one that is triggered during execution. Please note that the minified version is not affected because of the minification rewriting the code.
less-require is similarly broken, as it contains less.js and therefore contains the same bug.
You might want to replace lessc.js in require-less with the 1.5 beta or master version of less.js to work around this, or wait for upstream to officially release it and require-less to pick it up.
However, it appears that lessc.js is a modified version, so it isn't likely as easy as replacing the file. You would need to merge the changes back.
It might be easier just to move the affected latedefs around until it runs correctly instead of upgrading to a later less.js version.
I’m having trouble to find a bug in my application.
The problem is random and don’t throw any error. The web site just keeps loading and loading and eventually gets a timeout.
Is a web application using MVC 3 in VS 2010 Pro.
Some time ago, I see a friend to write something in the url, and gets all the trace of the program…
Sadly, I don’t remember what the command was.
Anyone has an idea of what command is it?
Any suggestion on what to use to debug?
Thanks!
Edgar.
UPDATE!
I finally found the command... is trace.axd
But Its behave the same way... sometimes load without problems and show me all the trace info... and sometimes.. it keep loading and loading...
Maybe something related with IIS?
Turn on break on every thrown exception, run your application in debug mode and wait. If it executes too long then pause application and check where you are or wait for exception that is handled somewhere.
Your friend may have had something like the following built into his application, to dynamically set tracing on.
Trace.IsEnabled = Request.QueryString["trace"] != null ? true : false;
This provides info only if the page is fully loaded. It's probably best if you use the VS debugger to step through code.
If all you loops look ok, investigate code that could result in circular references or deadlocks. These can be difficult to spot sometimes, look for functions or constructors that require results from a calling class. So code that needs the result from a function which in turn need results from the first.
Well, this sounds like you have an infinite loop somewhere.
Look at the code that runs when you visit the URL that gives you trouble. See if there is any loops in there (for/while). If yes, see why if they never exit. You can do this by putting a breakpoint inside the loop and examining its behavior over the iterations.
in MVC the bugs you do not see are most of time (especially in Razor and Ajax work) view compile errors. Sometimes syntax bugs on views just does not show that view and do not stop working.
Try that:
put a breakpoint in view.
If program stops in there it means this view is working. Othervise there is a syntax error in this view.
Another way to see some bug information more than in visual studio is use browser tools.
I use google Chrome. Just open developer tools in it. Open network. And do your request. It will list the requests and responses. Click the response and see the information. After style (it is written Verdana etc) read exception details. Sometimes there is more information :)
I am using MVC 3 in Razor from start. So this is a small bug in asp.net mvc.
I have tried out the NPRuntime sample provided with the Gecko SDK 1.9.1 with the help of this link.
It works perfectly fine with Firefox 3.6.
Following the above steps I created a new scripting plugin (npmyplugin.dll). I am currently placing npmyplugin.dll in a folder other than Firefox/plugins. I am registering the associated mime-type and plugin path in the registry. The plugin gets loaded properly. But now the browser is not calling NPP_GetValue.
I was suspecting that it must be because I am placing the plugin in a directory other than Firefox/plugins. Hence I did the same with npruntime.dll (the sample which comes with Gecko sdk). Suprisingly npruntime.dll scripting was working. Please guide me whether I missing anything important while creating the new plugin.
NPP_GetValue doesn't get called to get the NPObject until the first time you access it with javascript in many cases. When you do a getElementById, it will make the call.
Likely other calls to GetValue are being made, but you aren't seeing them because you aren't handling them. However, that's still not guaranteed.
Sorry for replying so late. I somehow solved the problem. I was embedding the plugin using tag
then i wrote a small javascript code
var MyWorkingPlugin = document.getElementById('MyPlugin');
It seems that after executing the above javascript NPP_GetValue was called. Currently I have no convincing reason why it happened but it worked and I am happy for the moment. If anyone can explain the above behaviour please let us know.