Thanks for reporting the issue. We'll have a look as soon as our office opens in Hamburg.

This is working for me. I am able to upload images using the KF_FiNDER. As you mentioned, it could be the port. Did you try without the port?

Can you enable debug = 2 in application/config/config.php and try again, please? Paste the complete error message here.

Also check F12 and the console tab in the browser debug window.

Sorry for that because local law forbade the 80 and 433, that's why I have to set the port unusually.

I have done it, it is the screenshot content.
I just do it again maybe there is sth new than the orginal.

Screen Shot 2021-11-11 at 18.03.23.png (92,792 bytes)   

Screen Shot 2021-11-11 at 18.03.23.png (92,792 bytes)   

Screen Shot 2021-11-11 at 18.03.11.png (27,419 bytes)   

Screen Shot 2021-11-11 at 18.03.11.png (27,419 bytes)   

I just tried LS on the public sever, the kc finder works fine.
It prove my point about the port issue. And the special port in my condition is only option to make the survey possible. Please help~ and thank you all the team member of LS!

Not only related to port.
See screenshot

Please :

1. Activate console (F12) like i do
2. Check the error you have

I have uploaded the console (F12) screenshot for the main page, I saw your screenshot is a KCfinder pop-up window. So I did the same as you. And activate the console as you did.
Screenshot in Attachment.

Or, Maybe it's a reverse proxy issue?

I saw your screenshot is a KCfinder pop-up window.

Without popup : you can go to Survey ressources (left menu)

Without popup : you can go to Survey ressources (left menu)

Did I attach the right screenshot you need above?
or do I need to upload more details?
Tell me if you need me to do that. You can share the same screenshot of the content as an example. I think that would be the clearest way I can follow.

Thanks for your excellent job~

Can you provide more informaton for Dennis?

The problem is still remain.
I tried install LS in Localhost, no problem.
I tried install LS in VPS, no problem.
I have ask in community, some friends tell me they have no problem with it, and some others tell me they have the same issue.

Please :
On ressource page

1. Activate console (F12) like i do

2. Check the error you have

3. Check the url of the iframe,

4. Activate debug mode

5. open iframe url on new windows

Put errors here.
Without this information : no way to help you.

Capture d’écran du 2022-04-27 08-30-41.png (88,414 bytes)   

Capture d’écran du 2022-04-27 08-30-41.png (88,414 bytes)   

Capture d’écran du 2022-04-27 08-34-37.png (54,136 bytes)   

Capture d’écran du 2022-04-27 08-34-37.png (54,136 bytes)   

Can not reproduce ,
Please test with such link with debug set

example.com:5678/survey/third_party/kcfinder/browse.php?type=images&CKEditor=question_en&CKEditorFuncNum=2&langCode=fr

Need more information,