Pointer for those debugging web apps
-
I of course mostly develop on my desktop Chromium browser, but every now and then I have a problem which only happens on my UBports browser. I found the file:
.cache/upstart/application-legacy-webbrowser-app-.log
which is the only place I've been able to find Javascript errors.
Also note that the browser is very, very clingy to JS source files, a reload of the overall app will often not update the contents of the JS source referenced from the app.
-
there is possibility to remotely debug browser webapps, if that helps: link
-
@lduboeuf said in Pointer for those debugging web apps:
there is possibility to remotely debug browser webapps, if that helps: link
Nice! I never found that in any of my searches, and that's an awesome ability. It helps very much.
Note the launch command appears to have become ubuntu-app-launch instead of upstart-app-launch, but otherwise it works as advertised. My default browser is Firefox, which did not play well with this facility. Chromium on Debian works perfectly.
-
glad it helps :), might be usefull to write an up to date turorial for ubports community then
-
<shameless stud>You can also use Logviewer to check the log and conveniently copy it to paste.ubuntu.com for later investigation, if you spot an error while you're on the go.</shameless stud>
-
@lduboeuf said in Pointer for those debugging web apps:
write an up to date turorial for ubports community then
That would be very much appreciated! Feel free to post something on wiki.ubports.com
-
@NeoTheThird said in Pointer for those debugging web apps:
@lduboeuf said in Pointer for those debugging web apps:
write an up to date turorial for ubports community then
That would be very much appreciated! Feel free to post something on wiki.ubports.com
Have a look at:
https://wiki.ubports.com/wiki/Web-Browser-app-debugging
and wordsmith it if you can think of nice changes. Thanks!(BTW, not clear how to link it into the rest of the document hierarchy.)
-
I'm discovering this thread. The tuto URL changed and now is http://docs.ubports.com/en/latest/appdev/webapp/webdebug.html
However, it looks like it doesn't work anymore. I did the 3 steps:
export QTWEBENGINE_REMOTE_DEBUGGING=0.0.0.0:9221morph-browser --desktop_file_hint=/usr/share/applications/morph-browser.desktop [web_site_url]- Open
http://YOUR_UT_IP_ADDRESS:9221with chromium
And it says connection refused.
-
@Fla
IIRC 3 years ago the browser was not yet Morph.
So I guess a lot changed since.Maybe someone know the modern way to debug webapps with Morph.
It might be better to open a new thread in this regard I guess -
I think the doc has been updated since then, as the command is
morph-browseras stated above. -
@Fla
Oh, right.
Sorry I didn't pay enough attention to the command lines.
