[Touch-packages] [Bug 1611680] Re: Scrolling on www.ceskenoviny.cz is very slow

2016-10-26 Thread Launchpad Bug Tracker
This bug was fixed in the package webbrowser-app -
0.23+17.04.20161024.1-0ubuntu1

---
webbrowser-app (0.23+17.04.20161024.1-0ubuntu1) zesty; urgency=medium

  [ Andrew Hayzen ]
  * Fix for issue where many tabs causes close button to overlap other
tabs (LP: #1473630)
  * When page has started, stopped, redirected or errored clear cache for
history update - which prevents incorrect titles in being set
(LP: #1603835)
  * Add autopilot tests javascript dialogs to webbrowser and
webapp-container - alertDialog, beforeUnloadDialog, confirmDialog and
promptDialog (LP: #1633040)
  * Add user-agent override to display the new twitter mobile interface
(LP: #1577834)

  [ Florian Boucault ]
  * Improved startup time by 800ms by delaying QML compilation and making
it asynchronous

  [ Olivier Tilloy ]
  * Replace chromium version in UA overrides at runtime, not at build
time (LP: #1599695)
  * Initial support for generating a snap package for webbrowser-app
(LP: #1629009)
  * Do not persist references to incognito downloads on disk
(LP: #1625519)
  * Increase test coverage (to 97.5%) for DownloadsModel (LP: #1534102)
  * Various performance optimizations linked to load events
(LP: #1611680)
  * Ensure a tab is loaded when re-opened (LP: #1632246)
  * Fix drag'n'drop of bookmarks within the new tab view (LP: #1584868)
  * Work around a limitation in the sound and microphone policy groups
to "fix" sound in yakkety an zesty (LP: #1632620)

 -- Olivier Tilloy   Mon, 24 Oct 2016
13:51:59 +

** Changed in: webbrowser-app (Ubuntu)
   Status: In Progress => Fix Released

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Title:
  Scrolling on  www.ceskenoviny.cz is very slow

Status in webbrowser-app package in Ubuntu:
  Fix Released

Bug description:
  Hello,
  the Czech news site I am reading quite often was recently updated to a new 
design and as of this update scrolling on the site gets quite tricky. On some 
articles scrolling is almost impossible.

  Now this is not the first site I find difficult to scroll on with an
  Ubuntu's web browser unfortunately, though it is usually the case of
  some heavy javascript ballast on the site I am sure.

  The worst experience I am getting so far is on this article:
  http://www.ceskenoviny.cz/zpravy/francouzska-justice-obvinila-16letou-
  divku-z-planovani-teroru/1379685 where scrolling is very laggy and
  more or less only gets me either to the absolute top or the absolute
  bottom of the article, not anywhere in the middle. Slow scrolling
  won't help the issue.

  Other articles like this one http://www.ceskenoviny.cz/zpravy/ceske-
  drahy-dostaly-pokutu-150-000-kc-za-chybejici-ceniky/1380181 feels only
  very laggy but not that bad from my experience.

  I've been testing this on my Meizu MX4 with rc-proposed. Maybe this is
  only the device issue though I doubt it.

  Is there something you can do about it?
  Thank you very much.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1611680] Re: Scrolling on www.ceskenoviny.cz is very slow

2016-10-23 Thread Launchpad Bug Tracker
** Branch linked: lp:~ci-train-bot/webbrowser-app/webbrowser-app-ubuntu-
zesty-2087

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Title:
  Scrolling on  www.ceskenoviny.cz is very slow

Status in webbrowser-app package in Ubuntu:
  In Progress

Bug description:
  Hello,
  the Czech news site I am reading quite often was recently updated to a new 
design and as of this update scrolling on the site gets quite tricky. On some 
articles scrolling is almost impossible.

  Now this is not the first site I find difficult to scroll on with an
  Ubuntu's web browser unfortunately, though it is usually the case of
  some heavy javascript ballast on the site I am sure.

  The worst experience I am getting so far is on this article:
  http://www.ceskenoviny.cz/zpravy/francouzska-justice-obvinila-16letou-
  divku-z-planovani-teroru/1379685 where scrolling is very laggy and
  more or less only gets me either to the absolute top or the absolute
  bottom of the article, not anywhere in the middle. Slow scrolling
  won't help the issue.

  Other articles like this one http://www.ceskenoviny.cz/zpravy/ceske-
  drahy-dostaly-pokutu-150-000-kc-za-chybejici-ceniky/1380181 feels only
  very laggy but not that bad from my experience.

  I've been testing this on my Meizu MX4 with rc-proposed. Maybe this is
  only the device issue though I doubt it.

  Is there something you can do about it?
  Thank you very much.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1611680] Re: Scrolling on www.ceskenoviny.cz is very slow

2016-10-10 Thread Launchpad Bug Tracker
** Branch linked: lp:~phablet-team/webbrowser-app/staging

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https://bugs.launchpad.net/bugs/1611680

Title:
  Scrolling on  www.ceskenoviny.cz is very slow

Status in webbrowser-app package in Ubuntu:
  In Progress

Bug description:
  Hello,
  the Czech news site I am reading quite often was recently updated to a new 
design and as of this update scrolling on the site gets quite tricky. On some 
articles scrolling is almost impossible.

  Now this is not the first site I find difficult to scroll on with an
  Ubuntu's web browser unfortunately, though it is usually the case of
  some heavy javascript ballast on the site I am sure.

  The worst experience I am getting so far is on this article:
  http://www.ceskenoviny.cz/zpravy/francouzska-justice-obvinila-16letou-
  divku-z-planovani-teroru/1379685 where scrolling is very laggy and
  more or less only gets me either to the absolute top or the absolute
  bottom of the article, not anywhere in the middle. Slow scrolling
  won't help the issue.

  Other articles like this one http://www.ceskenoviny.cz/zpravy/ceske-
  drahy-dostaly-pokutu-150-000-kc-za-chybejici-ceniky/1380181 feels only
  very laggy but not that bad from my experience.

  I've been testing this on my Meizu MX4 with rc-proposed. Maybe this is
  only the device issue though I doubt it.

  Is there something you can do about it?
  Thank you very much.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1611680] Re: Scrolling on www.ceskenoviny.cz is very slow

2016-09-27 Thread Olivier Tilloy
** Changed in: webbrowser-app (Ubuntu)
   Status: Confirmed => In Progress

** Branch linked: lp:~osomon/webbrowser-app/loadEvent-optimizations

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Title:
  Scrolling on  www.ceskenoviny.cz is very slow

Status in webbrowser-app package in Ubuntu:
  In Progress

Bug description:
  Hello,
  the Czech news site I am reading quite often was recently updated to a new 
design and as of this update scrolling on the site gets quite tricky. On some 
articles scrolling is almost impossible.

  Now this is not the first site I find difficult to scroll on with an
  Ubuntu's web browser unfortunately, though it is usually the case of
  some heavy javascript ballast on the site I am sure.

  The worst experience I am getting so far is on this article:
  http://www.ceskenoviny.cz/zpravy/francouzska-justice-obvinila-16letou-
  divku-z-planovani-teroru/1379685 where scrolling is very laggy and
  more or less only gets me either to the absolute top or the absolute
  bottom of the article, not anywhere in the middle. Slow scrolling
  won't help the issue.

  Other articles like this one http://www.ceskenoviny.cz/zpravy/ceske-
  drahy-dostaly-pokutu-150-000-kc-za-chybejici-ceniky/1380181 feels only
  very laggy but not that bad from my experience.

  I've been testing this on my Meizu MX4 with rc-proposed. Maybe this is
  only the device issue though I doubt it.

  Is there something you can do about it?
  Thank you very much.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/webbrowser-app/+bug/1611680/+subscriptions

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[Touch-packages] [Bug 1611680] Re: Scrolling on www.ceskenoviny.cz is very slow

2016-09-26 Thread Olivier Tilloy
Another interesting observation with http://www.ceskenoviny.cz/zpravy
/francouzska-justice-obvinila-16letou-divku-z-planovani-teroru/1379685:
as soon as I scroll on this page (by dragging a finger on a phone or
using the mouse scroll wheel on desktop), the contents of the title
element change, so we get a huge number of titleChanged events (which in
turn may trigger a history db update). I have verified that the same
happens in chromium, so it’s not an oxide/webbrowser-app bug, more
likely a website bug. Still, we should try and handle this gracefully.

-- 
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Title:
  Scrolling on  www.ceskenoviny.cz is very slow

Status in webbrowser-app package in Ubuntu:
  Confirmed

Bug description:
  Hello,
  the Czech news site I am reading quite often was recently updated to a new 
design and as of this update scrolling on the site gets quite tricky. On some 
articles scrolling is almost impossible.

  Now this is not the first site I find difficult to scroll on with an
  Ubuntu's web browser unfortunately, though it is usually the case of
  some heavy javascript ballast on the site I am sure.

  The worst experience I am getting so far is on this article:
  http://www.ceskenoviny.cz/zpravy/francouzska-justice-obvinila-16letou-
  divku-z-planovani-teroru/1379685 where scrolling is very laggy and
  more or less only gets me either to the absolute top or the absolute
  bottom of the article, not anywhere in the middle. Slow scrolling
  won't help the issue.

  Other articles like this one http://www.ceskenoviny.cz/zpravy/ceske-
  drahy-dostaly-pokutu-150-000-kc-za-chybejici-ceniky/1380181 feels only
  very laggy but not that bad from my experience.

  I've been testing this on my Meizu MX4 with rc-proposed. Maybe this is
  only the device issue though I doubt it.

  Is there something you can do about it?
  Thank you very much.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1611680] Re: Scrolling on www.ceskenoviny.cz is very slow

2016-08-24 Thread Olivier Tilloy
> the layout of the chrome/address bar depends too much on the 'loading'
> and 'loadProgress' properties of the webview, causing countless
> binding evaluations and re-layouts for each load event

When loadCommitted events are emitted while scrolling on that page on
ceskenoviny.cz, I have verified that the value of 'loadProgress' doesn’t
change. The progress bar flashes as a result of the value of 'loading'
changing, but its value is not changing.

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Title:
  Scrolling on  www.ceskenoviny.cz is very slow

Status in webbrowser-app package in Ubuntu:
  Confirmed

Bug description:
  Hello,
  the Czech news site I am reading quite often was recently updated to a new 
design and as of this update scrolling on the site gets quite tricky. On some 
articles scrolling is almost impossible.

  Now this is not the first site I find difficult to scroll on with an
  Ubuntu's web browser unfortunately, though it is usually the case of
  some heavy javascript ballast on the site I am sure.

  The worst experience I am getting so far is on this article:
  http://www.ceskenoviny.cz/zpravy/francouzska-justice-obvinila-16letou-
  divku-z-planovani-teroru/1379685 where scrolling is very laggy and
  more or less only gets me either to the absolute top or the absolute
  bottom of the article, not anywhere in the middle. Slow scrolling
  won't help the issue.

  Other articles like this one http://www.ceskenoviny.cz/zpravy/ceske-
  drahy-dostaly-pokutu-150-000-kc-za-chybejici-ceniky/1380181 feels only
  very laggy but not that bad from my experience.

  I've been testing this on my Meizu MX4 with rc-proposed. Maybe this is
  only the device issue though I doubt it.

  Is there something you can do about it?
  Thank you very much.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/webbrowser-app/+bug/1611680/+subscriptions

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[Touch-packages] [Bug 1611680] Re: Scrolling on www.ceskenoviny.cz is very slow

2016-08-23 Thread zubozrout
Hmm, just found another page that doesn't work that well in Ubuntu's
browser: https://www.paradoxplaza.com/cities-skylines-deluxe?___store=eu

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https://bugs.launchpad.net/bugs/1611680

Title:
  Scrolling on  www.ceskenoviny.cz is very slow

Status in webbrowser-app package in Ubuntu:
  Confirmed

Bug description:
  Hello,
  the Czech news site I am reading quite often was recently updated to a new 
design and as of this update scrolling on the site gets quite tricky. On some 
articles scrolling is almost impossible.

  Now this is not the first site I find difficult to scroll on with an
  Ubuntu's web browser unfortunately, though it is usually the case of
  some heavy javascript ballast on the site I am sure.

  The worst experience I am getting so far is on this article:
  http://www.ceskenoviny.cz/zpravy/francouzska-justice-obvinila-16letou-
  divku-z-planovani-teroru/1379685 where scrolling is very laggy and
  more or less only gets me either to the absolute top or the absolute
  bottom of the article, not anywhere in the middle. Slow scrolling
  won't help the issue.

  Other articles like this one http://www.ceskenoviny.cz/zpravy/ceske-
  drahy-dostaly-pokutu-150-000-kc-za-chybejici-ceniky/1380181 feels only
  very laggy but not that bad from my experience.

  I've been testing this on my Meizu MX4 with rc-proposed. Maybe this is
  only the device issue though I doubt it.

  Is there something you can do about it?
  Thank you very much.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/webbrowser-app/+bug/1611680/+subscriptions

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[Touch-packages] [Bug 1611680] Re: Scrolling on www.ceskenoviny.cz is very slow

2016-08-22 Thread zubozrout
@Olivier Tilloy: Wow, quick and awesome work :), thank you. I would
expect there are other websites affected by this behaviour based on your
observations so if this could be fixed I hope it will not only help to
resolve problems with this specific page but other sites as well.

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Title:
  Scrolling on  www.ceskenoviny.cz is very slow

Status in webbrowser-app package in Ubuntu:
  Confirmed

Bug description:
  Hello,
  the Czech news site I am reading quite often was recently updated to a new 
design and as of this update scrolling on the site gets quite tricky. On some 
articles scrolling is almost impossible.

  Now this is not the first site I find difficult to scroll on with an
  Ubuntu's web browser unfortunately, though it is usually the case of
  some heavy javascript ballast on the site I am sure.

  The worst experience I am getting so far is on this article:
  http://www.ceskenoviny.cz/zpravy/francouzska-justice-obvinila-16letou-
  divku-z-planovani-teroru/1379685 where scrolling is very laggy and
  more or less only gets me either to the absolute top or the absolute
  bottom of the article, not anywhere in the middle. Slow scrolling
  won't help the issue.

  Other articles like this one http://www.ceskenoviny.cz/zpravy/ceske-
  drahy-dostaly-pokutu-150-000-kc-za-chybejici-ceniky/1380181 feels only
  very laggy but not that bad from my experience.

  I've been testing this on my Meizu MX4 with rc-proposed. Maybe this is
  only the device issue though I doubt it.

  Is there something you can do about it?
  Thank you very much.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/webbrowser-app/+bug/1611680/+subscriptions

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[Touch-packages] [Bug 1611680] Re: Scrolling on www.ceskenoviny.cz is very slow

2016-08-22 Thread Olivier Tilloy
I’ve done some profiling on my arale and I’ve found out a few
interesting things:

 - there’s an urlChanged handler in NavigationBar.qml¹ that’s triggered
with every load event, and it’s costly

 - the loadEvent and titleChanged handlers in Browser.qml² are expensive
too, because they cause updates to the HistoryModel that block the UI
thread

 - the layout of the chrome/address bar depends too much on the
'loading'³ and 'loadProgress' properties of the webview, causing
countless binding evaluations and re-layouts for each load event

All those observations cause a tremendous slowdown on that specific page
because scrolling triggers LoadCommitted events. I’m not sure why those
events are triggered at all, but I’m sure the browser can be improved to
not grind to a halt when that happens.


¹ 
https://bazaar.launchpad.net/~phablet-team/webbrowser-app/trunk/view/head:/src/app/webbrowser/NavigationBar.qml#L142
² 
https://bazaar.launchpad.net/~phablet-team/webbrowser-app/trunk/view/head:/src/app/webbrowser/Browser.qml#L1276
³ 
https://bazaar.launchpad.net/~phablet-team/webbrowser-app/trunk/view/head:/src/app/webbrowser/NavigationBar.qml#L125

** Changed in: webbrowser-app (Ubuntu)
 Assignee: (unassigned) => Olivier Tilloy (osomon)

** Changed in: webbrowser-app (Ubuntu)
   Importance: Undecided => High

-- 
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https://bugs.launchpad.net/bugs/1611680

Title:
  Scrolling on  www.ceskenoviny.cz is very slow

Status in webbrowser-app package in Ubuntu:
  Confirmed

Bug description:
  Hello,
  the Czech news site I am reading quite often was recently updated to a new 
design and as of this update scrolling on the site gets quite tricky. On some 
articles scrolling is almost impossible.

  Now this is not the first site I find difficult to scroll on with an
  Ubuntu's web browser unfortunately, though it is usually the case of
  some heavy javascript ballast on the site I am sure.

  The worst experience I am getting so far is on this article:
  http://www.ceskenoviny.cz/zpravy/francouzska-justice-obvinila-16letou-
  divku-z-planovani-teroru/1379685 where scrolling is very laggy and
  more or less only gets me either to the absolute top or the absolute
  bottom of the article, not anywhere in the middle. Slow scrolling
  won't help the issue.

  Other articles like this one http://www.ceskenoviny.cz/zpravy/ceske-
  drahy-dostaly-pokutu-150-000-kc-za-chybejici-ceniky/1380181 feels only
  very laggy but not that bad from my experience.

  I've been testing this on my Meizu MX4 with rc-proposed. Maybe this is
  only the device issue though I doubt it.

  Is there something you can do about it?
  Thank you very much.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/webbrowser-app/+bug/1611680/+subscriptions

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[Touch-packages] [Bug 1611680] Re: Scrolling on www.ceskenoviny.cz is very slow

2016-08-22 Thread Olivier Tilloy
In an attempt to nail down what may be the culprit I’ve commented out
chunks of the browser code related to locationBarController and load
events, but that hasn’t made the situation better. When scrolling on
that page, I’m seeing the CPU usage of webbrowser-app skyrocket, so
there’s something wrong, but I don’t know what yet.

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Title:
  Scrolling on  www.ceskenoviny.cz is very slow

Status in webbrowser-app package in Ubuntu:
  Confirmed

Bug description:
  Hello,
  the Czech news site I am reading quite often was recently updated to a new 
design and as of this update scrolling on the site gets quite tricky. On some 
articles scrolling is almost impossible.

  Now this is not the first site I find difficult to scroll on with an
  Ubuntu's web browser unfortunately, though it is usually the case of
  some heavy javascript ballast on the site I am sure.

  The worst experience I am getting so far is on this article:
  http://www.ceskenoviny.cz/zpravy/francouzska-justice-obvinila-16letou-
  divku-z-planovani-teroru/1379685 where scrolling is very laggy and
  more or less only gets me either to the absolute top or the absolute
  bottom of the article, not anywhere in the middle. Slow scrolling
  won't help the issue.

  Other articles like this one http://www.ceskenoviny.cz/zpravy/ceske-
  drahy-dostaly-pokutu-150-000-kc-za-chybejici-ceniky/1380181 feels only
  very laggy but not that bad from my experience.

  I've been testing this on my Meizu MX4 with rc-proposed. Maybe this is
  only the device issue though I doubt it.

  Is there something you can do about it?
  Thank you very much.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/webbrowser-app/+bug/1611680/+subscriptions

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[Touch-packages] [Bug 1611680] Re: Scrolling on www.ceskenoviny.cz is very slow

2016-08-22 Thread Olivier Tilloy
And a UA override doesn’t seem to make any change.

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Title:
  Scrolling on  www.ceskenoviny.cz is very slow

Status in webbrowser-app package in Ubuntu:
  Confirmed

Bug description:
  Hello,
  the Czech news site I am reading quite often was recently updated to a new 
design and as of this update scrolling on the site gets quite tricky. On some 
articles scrolling is almost impossible.

  Now this is not the first site I find difficult to scroll on with an
  Ubuntu's web browser unfortunately, though it is usually the case of
  some heavy javascript ballast on the site I am sure.

  The worst experience I am getting so far is on this article:
  http://www.ceskenoviny.cz/zpravy/francouzska-justice-obvinila-16letou-
  divku-z-planovani-teroru/1379685 where scrolling is very laggy and
  more or less only gets me either to the absolute top or the absolute
  bottom of the article, not anywhere in the middle. Slow scrolling
  won't help the issue.

  Other articles like this one http://www.ceskenoviny.cz/zpravy/ceske-
  drahy-dostaly-pokutu-150-000-kc-za-chybejici-ceniky/1380181 feels only
  very laggy but not that bad from my experience.

  I've been testing this on my Meizu MX4 with rc-proposed. Maybe this is
  only the device issue though I doubt it.

  Is there something you can do about it?
  Thank you very much.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/webbrowser-app/+bug/1611680/+subscriptions

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[Touch-packages] [Bug 1611680] Re: Scrolling on www.ceskenoviny.cz is very slow, page keeps loading data off the network

2016-08-22 Thread Olivier Tilloy
I’m seeing a stream of LoadCommitted events while scrolling on that
page¹. In a simple oxide WebView though (without an address bar or any
chrome), scrolling is almost smooth, so it seems this problem is browser
specific. I’ve also tested with an Ubuntu.Web WebView and a dummy
locationBarController (a red rectangle), and scrolling is reasonably
smooth there too.


¹ 
http://www.ceskenoviny.cz/zpravy/francouzska-justice-obvinila-16letou-divku-z-planovani-teroru/1379685

** Summary changed:

- Scrolling on  www.ceskenoviny.cz is very slow, page keeps loading data off 
the network
+ Scrolling on  www.ceskenoviny.cz is very slow

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1611680

Title:
  Scrolling on  www.ceskenoviny.cz is very slow

Status in webbrowser-app package in Ubuntu:
  Confirmed

Bug description:
  Hello,
  the Czech news site I am reading quite often was recently updated to a new 
design and as of this update scrolling on the site gets quite tricky. On some 
articles scrolling is almost impossible.

  Now this is not the first site I find difficult to scroll on with an
  Ubuntu's web browser unfortunately, though it is usually the case of
  some heavy javascript ballast on the site I am sure.

  The worst experience I am getting so far is on this article:
  http://www.ceskenoviny.cz/zpravy/francouzska-justice-obvinila-16letou-
  divku-z-planovani-teroru/1379685 where scrolling is very laggy and
  more or less only gets me either to the absolute top or the absolute
  bottom of the article, not anywhere in the middle. Slow scrolling
  won't help the issue.

  Other articles like this one http://www.ceskenoviny.cz/zpravy/ceske-
  drahy-dostaly-pokutu-150-000-kc-za-chybejici-ceniky/1380181 feels only
  very laggy but not that bad from my experience.

  I've been testing this on my Meizu MX4 with rc-proposed. Maybe this is
  only the device issue though I doubt it.

  Is there something you can do about it?
  Thank you very much.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/webbrowser-app/+bug/1611680/+subscriptions

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[Touch-packages] [Bug 1611680] Re: Scrolling on www.ceskenoviny.cz is very slow, page keeps loading data off the network

2016-08-22 Thread zubozrout
Also, I see I did not mention Liri web browser - the page works fine
there as well.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1611680

Title:
  Scrolling on  www.ceskenoviny.cz is very slow, page keeps loading data
  off the network

Status in webbrowser-app package in Ubuntu:
  Confirmed

Bug description:
  Hello,
  the Czech news site I am reading quite often was recently updated to a new 
design and as of this update scrolling on the site gets quite tricky. On some 
articles scrolling is almost impossible.

  Now this is not the first site I find difficult to scroll on with an
  Ubuntu's web browser unfortunately, though it is usually the case of
  some heavy javascript ballast on the site I am sure.

  The worst experience I am getting so far is on this article:
  http://www.ceskenoviny.cz/zpravy/francouzska-justice-obvinila-16letou-
  divku-z-planovani-teroru/1379685 where scrolling is very laggy and
  more or less only gets me either to the absolute top or the absolute
  bottom of the article, not anywhere in the middle. Slow scrolling
  won't help the issue.

  Other articles like this one http://www.ceskenoviny.cz/zpravy/ceske-
  drahy-dostaly-pokutu-150-000-kc-za-chybejici-ceniky/1380181 feels only
  very laggy but not that bad from my experience.

  I've been testing this on my Meizu MX4 with rc-proposed. Maybe this is
  only the device issue though I doubt it.

  Is there something you can do about it?
  Thank you very much.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/webbrowser-app/+bug/1611680/+subscriptions

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[Touch-packages] [Bug 1611680] Re: Scrolling on www.ceskenoviny.cz is very slow, page keeps loading data off the network

2016-08-22 Thread zubozrout
@Olivier Tilloy: Thank you very much for testing this and for planning
the UA override. I have no idea how to do that with my Ubuntu Phone :(.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1611680

Title:
  Scrolling on  www.ceskenoviny.cz is very slow, page keeps loading data
  off the network

Status in webbrowser-app package in Ubuntu:
  Confirmed

Bug description:
  Hello,
  the Czech news site I am reading quite often was recently updated to a new 
design and as of this update scrolling on the site gets quite tricky. On some 
articles scrolling is almost impossible.

  Now this is not the first site I find difficult to scroll on with an
  Ubuntu's web browser unfortunately, though it is usually the case of
  some heavy javascript ballast on the site I am sure.

  The worst experience I am getting so far is on this article:
  http://www.ceskenoviny.cz/zpravy/francouzska-justice-obvinila-16letou-
  divku-z-planovani-teroru/1379685 where scrolling is very laggy and
  more or less only gets me either to the absolute top or the absolute
  bottom of the article, not anywhere in the middle. Slow scrolling
  won't help the issue.

  Other articles like this one http://www.ceskenoviny.cz/zpravy/ceske-
  drahy-dostaly-pokutu-150-000-kc-za-chybejici-ceniky/1380181 feels only
  very laggy but not that bad from my experience.

  I've been testing this on my Meizu MX4 with rc-proposed. Maybe this is
  only the device issue though I doubt it.

  Is there something you can do about it?
  Thank you very much.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/webbrowser-app/+bug/1611680/+subscriptions

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[Touch-packages] [Bug 1611680] Re: Scrolling on www.ceskenoviny.cz is very slow, page keeps loading data off the network

2016-08-22 Thread Olivier Tilloy
Just got my hands on an android phone, running a recent version of
chrome (52), and I can confirm that scrolling of that same web page
works fine. I’ll test the UA override hypothesis later today.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1611680

Title:
  Scrolling on  www.ceskenoviny.cz is very slow, page keeps loading data
  off the network

Status in webbrowser-app package in Ubuntu:
  Confirmed

Bug description:
  Hello,
  the Czech news site I am reading quite often was recently updated to a new 
design and as of this update scrolling on the site gets quite tricky. On some 
articles scrolling is almost impossible.

  Now this is not the first site I find difficult to scroll on with an
  Ubuntu's web browser unfortunately, though it is usually the case of
  some heavy javascript ballast on the site I am sure.

  The worst experience I am getting so far is on this article:
  http://www.ceskenoviny.cz/zpravy/francouzska-justice-obvinila-16letou-
  divku-z-planovani-teroru/1379685 where scrolling is very laggy and
  more or less only gets me either to the absolute top or the absolute
  bottom of the article, not anywhere in the middle. Slow scrolling
  won't help the issue.

  Other articles like this one http://www.ceskenoviny.cz/zpravy/ceske-
  drahy-dostaly-pokutu-150-000-kc-za-chybejici-ceniky/1380181 feels only
  very laggy but not that bad from my experience.

  I've been testing this on my Meizu MX4 with rc-proposed. Maybe this is
  only the device issue though I doubt it.

  Is there something you can do about it?
  Thank you very much.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/webbrowser-app/+bug/1611680/+subscriptions

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[Touch-packages] [Bug 1611680] Re: Scrolling on www.ceskenoviny.cz is very slow, page keeps loading data off the network

2016-08-22 Thread zubozrout
@Olivier Tilloy: I've just asked my friend to test this on Android
(Google Chrome) and was told the website (both the links I posted above)
work just fine there, no problems with scrolling at all. I do no longer
poses any Android (or non-Ubuntu) device so I can't test this on my own
unfortunately :(.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1611680

Title:
  Scrolling on  www.ceskenoviny.cz is very slow, page keeps loading data
  off the network

Status in webbrowser-app package in Ubuntu:
  Confirmed

Bug description:
  Hello,
  the Czech news site I am reading quite often was recently updated to a new 
design and as of this update scrolling on the site gets quite tricky. On some 
articles scrolling is almost impossible.

  Now this is not the first site I find difficult to scroll on with an
  Ubuntu's web browser unfortunately, though it is usually the case of
  some heavy javascript ballast on the site I am sure.

  The worst experience I am getting so far is on this article:
  http://www.ceskenoviny.cz/zpravy/francouzska-justice-obvinila-16letou-
  divku-z-planovani-teroru/1379685 where scrolling is very laggy and
  more or less only gets me either to the absolute top or the absolute
  bottom of the article, not anywhere in the middle. Slow scrolling
  won't help the issue.

  Other articles like this one http://www.ceskenoviny.cz/zpravy/ceske-
  drahy-dostaly-pokutu-150-000-kc-za-chybejici-ceniky/1380181 feels only
  very laggy but not that bad from my experience.

  I've been testing this on my Meizu MX4 with rc-proposed. Maybe this is
  only the device issue though I doubt it.

  Is there something you can do about it?
  Thank you very much.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/webbrowser-app/+bug/1611680/+subscriptions

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