I have a Jetson Nano that runs LXDE. After booting it should automatically start Chromium in kiosk mode and launch a web page. The web page is very simple, just adding and removing some rectangles or images based on web socket messages.
Since sometimes the DOM gets updated, sometimes not, I thought my web page has some bug. But this behavior is only on the Jetson Nano. Furthermore, when I launch the Chromium manually with the exact same parameters, I have no problem at all, everything runs as expected.
I also observed that the Chromium (the autostarted one) instantly updates the DOM correctly when I press Alt+Tab (since it is the only application, no application is really switched). So apparently nothing has happened since the last web socket message, I just press Alt+Tab, and the web page instantly is displaying the correct things. Additionally it is very difficult to bring up the developer console, pressing ctrl+shift+i for several minutes, when you are lucky it fires up the developer console. Once it is there, the web page is again working normally.
I have no idea what I can do about it. I just want to launch the Chrome so it behavior is like when I start it normally.
Currently, the autostart is done inside ~/.config/lxsession/LXDE/autostart with the line #/home/agx/dev/autostart/chromium.sh, this file is:
#!/bin/bash
sleep 60
chromium-browser --new-window --password-store=basic -kiosk --js-flags='--jitless' http://192.168.1.50/index.html
I tried to delay the start hoping it would help but it changed nothing. Same for jitless. I can execute exact this command manually in the console, chromium fires up and behaves normally.
How can I trace this one down?
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I'm working on a monitoring tool for my website to log data. The actual logging is made on server. My goal is to calculate stats based on how long the user stays on the website.
Main question: I used chrome headless command --remote-debugging-port=80. I got logs for up to 10 minutes. Works perfectly. But how long will it work if left working? Is there a default timeout? If yes, how can I change it? If I want to run it exactly 30 minutes after page finished loading?
I'm trying to do the same on firefox (tried using PhantomJS but it wasn't loading the page correctly even though useragent was set to firefox) but firefox just throws an bank page when I'm trying to start a headless mode. I used "firefox -headless" and tried capturing an screenshot. It was just exiting my currently open firefox tabs without capturing any image. Any idea?
Using firefox quantum 59.0. I don't want to use selenium.
Also PhantomJS solution would be great. Currently I just want to collect logs. So, it only have to run all javascript (an jquery) code on the page which then sends the data using ajax. I tried page.onLoadFinished and then a wait function to make it stay on the page for the exact time after page loading.
Since no one answered, I will try to answer my own question after even more research and logical thinking.
Main question: Seems that there is no timeout but if need can be used --timeout X. Even though it's not perfect because it runs independently if the page if fully loaded or not.
As for the firefox, it's buggy. -new-instance (make headless run while you are already on firefox) is not working and -no-remote didn't help. Firefox is only working if running only one instance. So, if it's the PC you are working on and you want to run tests too, firefox is not for you. Headless runs only when no other instances of firefox are running, while chrome runs fine.
PhantomJS didn't work even though tried multiple solutions.
Best solution? Use chrome. Need portable? Use chromium and use headless. Or write your soft to use cefsharp which is based on chromium. Your browser with all libs will be around 120-200MB. Pretty big for portable but do it's work. Same as portable chrome or chromium. CefSharp have a privilege of integrating whatever you like into the browser since it's a... browser.
My web app uses IndexedDB and I'm testing on SauceLabs. Some months back my tests ran but now they block on a browser dialog that says "http://gbserver3.cs.unc.edu/" wants to: store files on this device", with an Allow button.
This is Win7 and Chrome or Firefox. Likely others too.
How can I dismiss or prevent this dialog?
Update: I have discovered that if I don't ask for quota I don't get the popup and my tests succeed. I'd still like to learn how to get rid of that dialog.
we are using Nightwatch.js in our project and we were facing the same issue.
What actually did the trick was using --unlimited-storage switch when launching the browser.
(List of other command line switches for Chromium can be found here)
I want my browser to start on startup. At the moment it works quite randomly. On some boots the browser flashes quickly and is running in the background. When this happens, I can't start a new browser session before I kill the existing one.
How can I prevent this from happening? I'm currently doing this with a shell script, but I've also tried the autostart method and both give me same results.
When using chrome dev tools to emulate mobile devices, sometimes when toggling emulation from mobile back to desktop the user agent spoofing gets stuck in mobile. I've tried hard cache reset, closing browser completely, restore to default.... but anything I do the site still renders in mobile (even when emulation is turned off).
This happens in Canary, beta, and regular Chrome.
Also a note i've only seen this happen in Sharepoint.
Anyone know how to resolve? Nothing seems to get the dev tools to change user agent back to default when exiting emulation.
Have you tried deleting your chrome settings?
Windows: C:/Users/%username%/AppData/Local/Google/Chrome/User Data
Mac OSX: ~/Library/Application Support/Google/Chrome/
Ubuntu: ~/.config/chromium/
Also make sure you aren't ZOOMED! Gets ya everytime
I ran into this same problem previously when using dev tools in Chrome to look at mobile resolutions that got me permanently stuck in mobile for SharePoint only. I solved it originally with the recommendation above of deleting my Chrome settings folder, however, that meant I had to sign in again, sync my extensions, etc.
After forgetting that this would happen again, I ran into the same issue, but this time I discovered that if you append the following to your SharePoint URL it will reset this back to non-mobile. I verified that it is not temporary as I have closed my browser, reopened, visited SharePoint, and it still loads in desktop mode.
/?mobile=0
So, you would use your site url, e.g. https://siteurl/?mobile=0
Weird, this just started happening to me. It persists in new tabs and new windows. Only fix is to open DevTools and switch to Responsive mode and then pull it way out. As soon as I turn off Responsive / Mobile view, Chrome snaps right back to a mobile view by default (appears to be iPad size).
The solution for me (so far) was to quit Chrome and open it back up.
I'm executing selenium tests with testng, that are started on a remote system with Selenium RC via hudson (with ssh connection). The remote system is windows xp with MKS Toolkit installed, hence ssh. Tests are NOT executed as a windows service.
I've tried using both captureScreenshot and captureEntirePageScreenshot methods. The first one always produces a black image. The second one creates the correct screen shot but it only works on Firefox and our tests usually pass on Firefox and fail in other browsers, so it is crucial to capture screen shots for the other browsers (mainly IE and Safari). The tests are ran in parallel, with many browser windows open at the same time. I'm not certain if this is what's causing the problem. Any thoughts will be appreciated.
Unfortunately screenshots in Selenium have been problematic from the start in browsers that are not Firefox. This is something that we Selenium Developers have been working on for a while to correct.
The latest work has been updating Snapsie to work in IE. There is a blog post at http://blog.codecentric.de/en/2010/02/remote-screenshots-mit-selenium-und-dem-robot-framework/ that explains what has happened.
I have noticed that if the screen isn't active, i.e. the screensaver has kicked in, it can produce black screenshots.
Edit:
I just had a thought. You can always run Castro to video record your tests and then watch it play back. This is something SauceLabs use to run Selenium in the cloud.
Write a method for this and call that whereever you need to take the screenshot. Use the java.awt package which has been used in selenium. For example, check this site
After setting Windows Auto-Logon, and launching process not as Windows Service, I found how to solve the Remote Desktop with Black Screenshots problem of IEDriverServer.exe, by creating a batch file that disconnects RDP, instead of closing the RDP session with the regular X button:
%windir%\system32\tscon.exe %SESSIONNAME% /dest:console
See more details here:
https://stackoverflow.com/a/24529629/658497
(Although, I would prefer there was a way to run it as the default action, when terminating RDP session with X Windows button).