Gwen-Dragon: Thank you SO much! Yes, I had third party cookies blocked. Problem now solved!

@gwen-dragon oof I didn't see this until now. just checked the blocked cookies, enabled the google.com, docs.google.com, and accounts.google.com ones, and its working. Thank you so much!

@Gwen-Dragon said in Darstellungsfehler Webseite(n), was mache ich falsch?: chrome://settings/cookies Danke, das war es, wenn auch nicht die von data.matricula-online.eu, aber deren Drittanbieter-Cookies. Normalerweise habe ich ALLE Cookies geblockt, Drittanbieter sowieso und aktiviere nur fallweise. Für data.matricula-online.eu waren sie explizit erlaubt, aber nicht Drittanbieter Cookies. Die Cookie-Geschichte sollte allerdings bei einem mit EU-Geldern geförderten Projekt keine Bedeutung haben. Die tschechischen Seiten funktionieren jetzt auch, auch ohne Cookies. Vielleicht hat da schon luetages Tipp funktioniert. Der Fall kann als gelöst betrachtet werden

Removing a cookie called LOGIN_INFO from my youtube cookies solved the issue. So logging in and out from my account helped. Kinda confusing still why this happens. Maybe an issue with youtube and not vivaldi.

@njroute22 I have the same. But I don't want to delete all cookies. And it happen on guest account too but there I can't play videos on YT too! Strange. edit: Allowed third party cookies and it work again. 😕

@luetage Thx. It seems to be caused by cookies. After deleting the cookies associated with the site, login works now.

@Gwen-Dragon Thank you very much, that helped a lot. I added ard and [*.]ardmediathek.de to the whitelist and activated "use third party cookies on this site" too. Now it even works with the tracker option on. Actually: I already was logged it. I think this might be through the trick I mentioned above: logging into ZDF with ARD, which works through another ARD-portal.

@RjGunner111 that problem is back, and all cookies were allowed still

@Gwen-Dragon - I created a test page. It works in Firefox (Gecko) and Edge (Chromium). It fails in Chromium browser, Google Chrome, and Vivaldi. I don't know how to proceed further on this track. Should I: Make a change request for Vivaldi? Plead my case with the Chromium developers? Try to get the remote site to change their cookie parameters? (Not likely to succeed, and it wouldn't help with other sites.) For now, I am using a four-tab tiled grid in Vivaldi. It basically works, but is fiddly. All panels have to use the same zoom scale. I have to adjust the tile sizes and scroll positions after each startup. To check for session timeout, the document in each tab reloads itself every 25 minutes. That shifts the scroll position a little each time, so eventually I have to readjust them. I'm looking into JavaScript to periodically restore the scroll positions. 2020-09-21 1617 GSHP Tile Creep.jpg This all seems harder than it ought to be. It might help to have options to lock the zoom scale and/or scroll position and/or size of a tile (or a tab). Maybe a little padlock icon/button at the intersection of its scrollbars. That would make the panel work a bit more like an iframe (which can specify scale and offset).

@Jimprovise, My Vivaldi for Windows is 3.5.2115.81 (Stable channel) (64 bits). I'm having the same problems with Vivaldi. I have already released the ad blocker, I have already released all cookies, but the problem persists. I think the biggest problem is that Vivaldi's developers don't read what we post here.

@TalGarik Glad it's working 🙂 Make sure to double-check your cookie settings under Privacy > Cookies. Blocking third-party cookies is fine (I do as well) but it will break sites, so you need to be able to fix things when it does. Usually this is done by creating exceptions for domains you will accept 3rd party cookies from. If you're using Google's services, you generally have no choice but to accept them from google.com for single sign-on to work. I don't know how Firefox containers work, but I assume they don't block 3rd party cookies as default, simply because it would simply stop too many sites from working.

@Gwen-Dragon Great thanx, finally its working!

@hdmule right on, glad you got everything sorted out and configured the way you want it. Just FYI, the POST vs GET privacy issue isn't just about the local machine. With your search being in the URL, it is exposed on the wire as well and gets stored in server logs that can expose it to more people. While POST doesn't magically secure that info, it does obscure it, and it would take more effort and more of a targeted attack to reveal what you're searching. All things together, it's a modest but real decrease in privacy vulnerabilities.

I guess it is already implemented. In the Manage Ad Blocking Sources Remove cookie warnings (Easylist Cookie List) Remove cookie warnings (I don't care about cookies) Latest Vivaldi Snapshot.

@iAN-CooG It's more vanity than function, if I'm honest. Adguard has a lovely looking UI and a pretty good custom block function. Although I'm far from pleased with Ghostary. It has a premium thing now, it keeps blocking strange things, it's less responsive than it used to be, and I've read some stories about its reliability etc. Also, I've just noticed AdGuard also blocks tracking so it really is redundant. I'll turn it off for now and check out Privacy Badger if things become intrusive. Thank you for your suggestions though.

Session Only will be improved.

I do not know, maybe they showed wrong, maybe these programs were badly picked up because I did not see that it was possible to send malware through cookies.

Yes. This would be awesome. Posted the same about a week ago... https://forum.vivaldi.net/topic/36502/separate-login-cookies-for-web-panels