# Server connection error (please check if cookies are enabled) **URL:** \ **Category:** HMI & Visualization\ **Tags:** mapp-view\ **Created:** [June 13, 2024, 1:13pm UTC](https://community.br-automation.com/t/server-connection-error-please-check-if-cookies-are-enabled/3525 "2024-06-13T13:13:46Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![Steffen\_Herderich](https://avatars.discourse-cdn.com/v4/letter/s/FF8800/32.png) [@Steffen\_Herderich](https://community.br-automation.com/u/Steffen_Herderich)\ **Post date:** [June 13, 2024, 1:13pm UTC](https://community.br-automation.com/t/server-connection-error-please-check-if-cookies-are-enabled/3525/1 "2024-06-13T13:13:46Z")
Hi, i have embedded a visualization of a plc into the visualization of another plc using a web viewer widget. This triggers the message “Server connection error (please check if cookies are enabled)” in the browser. The problem is described in the help under Situation 2: > **[B&R Online Help](https://help.br-automation.com/#/en/4/visualization/mappview/guides/diagnosis_new/client_fehlermeldungen/serverconnectioncookieserror.html)** For the moment, I have applied the solution of using an old Chromium version. However, I am wondering if this issue is being worked on and if it will be possible to use up-to-date browser versions in the future. The mentioned browser flags have been removed, and Chromium version 83 is now very outdated. I think that sooner or later, a customer who values updates will not accept a 5-year-old browser version… Or are there other ways to embed two visualizations into each other? By the way, this problem does not occur with current Firefox versions. Is there any reason not to use Firefox? Thank you. ---
**Author:** ![wagner2a](https://avatars.discourse-cdn.com/v4/letter/w/FF8800/32.png) [@wagner2a](https://community.br-automation.com/u/wagner2a)\ **Post date:** [June 13, 2024, 2:19pm UTC](https://community.br-automation.com/t/server-connection-error-please-check-if-cookies-are-enabled/3525/2 "2024-06-13T14:19:27Z")
Hello Mr. Herderich, regarding “However, I am wondering if this issue is being worked on and if it will be possible to use up-to-date browser versions in the future.”: Please try to change the visualization that should be embedded to https. In newer Chrome versions both visus should use https. ---
**Author:** ![wagner2a](https://avatars.discourse-cdn.com/v4/letter/w/FF8800/32.png) [@wagner2a](https://community.br-automation.com/u/wagner2a)\ **Post date:** [June 13, 2024, 2:21pm UTC](https://community.br-automation.com/t/server-connection-error-please-check-if-cookies-are-enabled/3525/3 "2024-06-13T14:21:10Z")
Regarding “Is there any reason not to use Firefox?”: “It is possible to use other browsers (especially on mobile devices). Firefox, Internet Explorer and Edge are known to cause display problems. It is therefore not advisable to use these browsers.” (see [B&R Online Help (br-automation.com)](https://help.br-automation.com/#/en/4/visualization%2Fmappview%2Fguides%2Fcommissioning%2Fcommissioning_browserrequirements.html)) ---
**Author:** ![Steffen\_Herderich](https://avatars.discourse-cdn.com/v4/letter/s/FF8800/32.png) [@Steffen\_Herderich](https://community.br-automation.com/u/Steffen_Herderich)\ **Post date:** [June 14, 2024, 8:10am UTC](https://community.br-automation.com/t/server-connection-error-please-check-if-cookies-are-enabled/3525/4 "2024-06-14T08:10:21Z")
Using HTTPS indeed seems to help with the issue of embedded visualizations. However, you first need to ensure that the browser accepts the self-generated certificates. In my project, though, there is another component embedded in a web viewer that currently operates unencrypted. This is now causing problems. But I understand. For the moment: old Chrome or new Firefox. With Firefox i haven’t noticed anything being displayed incorrectly or behaving differently. Thank you. ---
**Author:** ![Tonko\_D](https://avatars.discourse-cdn.com/v4/letter/t/FF8800/32.png) [@Tonko\_D](https://community.br-automation.com/u/Tonko_D)\ **Post date:** [November 12, 2025, 6:16am UTC](https://community.br-automation.com/t/server-connection-error-please-check-if-cookies-are-enabled/3525/5 "2025-11-12T06:16:19Z")
hallo.. i have the same problem..first visualization in Chrome working but component WebViewer in this first visualization have problem :“Server connection error (please check if cookies are enabled)” second visualization is also created on BaR PLC in mappView have you solutions? ---
**Author:** ![Steffen\_Herderich](https://avatars.discourse-cdn.com/v4/letter/s/FF8800/32.png) [@Steffen\_Herderich](https://community.br-automation.com/u/Steffen_Herderich)\ **Post date:** [November 12, 2025, 6:47am UTC](https://community.br-automation.com/t/server-connection-error-please-check-if-cookies-are-enabled/3525/6 "2025-11-12T06:47:22Z")
You have to use https for both servers an make sure the browser accepts the self-generated certificates. See my last post. ---
**Author:** ![Tonko\_D](https://avatars.discourse-cdn.com/v4/letter/t/FF8800/32.png) [@Tonko\_D](https://community.br-automation.com/u/Tonko_D)\ **Post date:** [November 12, 2025, 7:15am UTC](https://community.br-automation.com/t/server-connection-error-please-check-if-cookies-are-enabled/3525/7 "2025-11-12T07:15:29Z")
So, is it sufficient to change the protocol from http to https? Is it not necessary to create actual certificates and SSL configurations? ---
**Author:** ![Steffen\_Herderich](https://avatars.discourse-cdn.com/v4/letter/s/FF8800/32.png) [@Steffen\_Herderich](https://community.br-automation.com/u/Steffen_Herderich)\ **Post date:** [November 12, 2025, 7:52am UTC](https://community.br-automation.com/t/server-connection-error-please-check-if-cookies-are-enabled/3525/8 "2025-11-12T07:52:43Z")
So I created an SSL configuration and generated certificates, which I then imported into the browser as trusted. That worked… ---
**Author:** ![Tonko\_D](https://avatars.discourse-cdn.com/v4/letter/t/FF8800/32.png) [@Tonko\_D](https://community.br-automation.com/u/Tonko_D)\ **Post date:** [November 12, 2025, 5:18pm UTC](https://community.br-automation.com/t/server-connection-error-please-check-if-cookies-are-enabled/3525/9 "2025-11-12T17:18:31Z")
great thanks ……is working after created SSL configuration and own certificat