I am trying to use requestPointerLock from Javascript on Android. I got some errors when trying the most basic things, so I tried out some examples like this or this don't work. At the same time, I read that the API should be supported in Android Chrome. Does anyone have a working example of this?
The specific error I get is similar to what I see in the 2nd example when running it: WrongDocumentError: The root document of this element is not valid for pointer lock.
I want to debug that issue, but I want to see any example working first.
Related
I'm using Reactjs to create a browser based web application which interacts with MongoDB. Everything was working fine until I added webpack. Now, everything still seems to be working fine except when I try to run the application I get a blank screen.
I've went through my code and can't see what I've done wrong and after doing some online research I believe the issue could be caused by any number of things.
Are there any logs which could be used to help investigate this? Failing that, is there a recommended way to investigate this?
As #konekoya stated, the Browser developer tools can be used to identify issues. In my case it showed the error that was preventing my browser from loading properly, I was then able to troubleshoot and solve my issue off the back of it.
I'm working on Chrome extension which needs to perform an action just before Chrome closes. Is there any method like chrome.window.onClose.addListener(...), or chrome.runtime.onClose.addListener(...) to ensure that something will be done and then chrome will close itself?
I've been struggling with this problem for two weeks. Here are the options for potential solutions that I've found, but they didn't work.
My investigation results:
Using function: chrome.runtime.onSuspend.addListener(...) - I don't know why, but it doesn't work at all for me. For example, I've tried to write a callback for this event, which tries to add hardcoded data to the indexed DB, but it doesn't add it. Description of this method even says that the callback is not guaranteed to be completed. OnSuspend documentation
Sent to the event page just before it is unloaded. This gives the extension opportunity to do some cleanup. Note that since the page is unloading, any asynchronous operations started while handling this event are not guaranteed to complete.
Chrome working in a background - with this option my extensions seems to work, but... only on Windows older than Windows 10. I've checked few options and on my other computer, which has Windows 7 installed, processes connected to Chrome are closing more slowly, which gives time for my extension to perform necessary tasks. Unfortunately, Windows 10 kills all the processes much faster. I've check option "continue running background apps when google chrome is closed", but it doesn't change anything. I've also enabled flag "#enable-push-api-background-mode", it hasn't helped either.
Keep Chrome running in the background on Win10, Enable flag to keep Chrome processes running
chrome.app.window.current().onClosed - I've found a similar question on Stack Overflow, and one of the answers was the code mentioned above. The problem is when I try to type chrome.app.win... inside console, it doesn't show any suggestions both in background script and content script. Google's documentation doesn't mention any permission that I've to add inside my manifest.json to get access to this functionality.Stack Overflow similar question, Google's documentation about chrome.app
Methods build in web browser - I've thought that method window.onclose might be useful in my case. I've performed the same test as for chrome.runtime.onSuspend, but the result was exactly the same. Documentation
I've stuck and haven't got any idea how to solve my problem. Maybe I missed something important? Hope you will help me.
i have built a HTML5 web site (or rather webapp as you wish) and it works fine in Chrome and firefox. I would say the only thing out of the ordinary is, that it uses
Google Closure in some parts (the issue persists in the simplest, non-optimized mode)
HTML5 canvas for 2D drawing
Now I was curious whether it would run on my Galaxy Tab Tablett and indeed it does. I was able to set up the remote debugging facility https://developers.google.com/chrome-developer-tools/docs/remote-debugging?hl=de and debug my code to get rid of a few things that were not working properly. However I notice that android-chrome regulary crashes while I use my app. The console in my desktop browser then complains about websocket being closed (thats why I suspect it really is a problem of the tablet side).
I would like to know what makes my website crash and am a bit flubbergusted that my HTML/js site can crash a browser like chrome so easily. I would have thought that it should be more stable than that.
Now as I would like to have an "entry" point into debugging the issue:
is there a crash log of chrome for android that I can inspect somehow?
can I somehow make it (chrome or android in general) more verbose on error messages?
There are a couple of things that you can do:
chrome://crashes will list the crashes that it has caught when a tab crashes - you might need to turn on crash reporting in the settings. You won't be able to fix it but you will be able to report it us so we can see if it is an issue.
Use logcat and see if there are any specific issues in the tracing output, such as an out of error message.
Does anyone know of any console emulator (preferably made in javascript or jquery) that would allow me direct access to the browsers javascript console that would be found in the developers tools in chrome for example? I have been using jq-console but that only emulates a terminal, very useful so far. However it only emulates a terminal and doesn't provide access to the browsers js console. I need this so that users have a front-end web based access to the console without having to open the developer tools or something similar, so they have access to the variables and objects available in the browsers js console. I had thought of loading the data into the memory of the jq-console instance however i think this would be a cumbersome process and i don't really know how to go about doing it without the information being directly entered into the jq-console instance. any help or guidance would be greatly appreciated. thanks in advance!
direct access to the browsers javascript console
No. Not without opening the console manually, and also you cannot do much more than logging messages. Any emulator will not use the native console.
web-based front end console at CodeAcademy.com
Have you looked at their source code? You can write such one yourself, too. Or have a look at EloquentJavaScript's console script (using Mochi and Codemirror).
a browser console
…is not possible without only emulating it. However, you can use FirebugLite for that, which promises the same look-and-feel as the native Firebug. Also, Opera's Dragonfly is written in JS, and it is released as open source so you might adapt (parts of) it.
Just started trying to adapt my html, css, javascript files to iOS using PhoneGap (I've also tried NimbleKit but the result is the same). I have a web app that I originally wrote for the Blackberry Playbook. The app works fine on the Playbook and in Chrome and Safari. However, when I try and run it through XCode with PhoneGap, the app displays on the simulator but does not seem to properly run the database coding (at least I think that is the problem). I do not get any build errors.
From the documentation, NimbleKit seems to just support its own internal SQLite, but PhoneGap seems to support WebDB, which is what my database is written in.
Finally, the simulator doesn't seem to run some global variables I have (I know, I know, don't use global variables) although that could be because they appear just after my DB initialization at the beginning of my javascript file.
Any thoughts or points in the right direction would be very helpful. Even if it is to some documentation which can help me debug the app in the iOS sim.
Thanks in advance.
Cold your problem be related to this?
http://phonegap.com/2012/04/18/ios-5-1-and-the-embedded-uiwebview-with-cordova/
I was facing a similar problem with PhoneGap and iOS Simulator last week,
all the code i wrote seem to have no problem,
anyway i tried this remote web inspector, and tried to create a database remotely using Safari Javascript Console,
bottom line I found that I was not able to create web database using iPhone Simulator,
looks like you need to deploy your app onto your device to make use of it.
I might be wrong, but that was what I found.