Website: Issue with k8s.io/docs/tutorials/kubernetes-basics/cluster-interactive/

[alexandrestein]

This is a...

• [ ] Feature Request
• [x] Bug Report

Problem:
I can't even start the tutorial.
Here is the screenshot of the initial page after clicking on START SCENARIO:

I tried with Chromium and Firefox but both give me the same result.

Proposed Solution:
I don't know what can be the problem, I have no idea.
When I use the debugger I can see the blurry area and I see:
Problem accessing cookies. Are cookies enabled?

I don't block cookies:

Page to Update:
https://kubernetes.io/docs/tutorials/kubernetes-basics/cluster-interactive/

[BenHall]

Thanks for the report. Are you behind any proxies that could be blocking web sockets?

Also, which OS are you running? It looks Linux based.

[alexandrestein]

Thanks for the quick reply.

I'm not behind a "real" HTTP proxy. I use a Shadowsock tunnel with mp-TCP to get much better bandwidth.
But it's not suppose to filter anything.
This should not be the issue, and when I connect directly to the web (no transparent proxy) I have the same behavior.

Yes, it's a Linux Ubuntu 17.04 with Kernel 4.10.0-26-generic.
The Chromium version is: 59.0.3071.109
The Firefox version is: Mozilla Firefox 54.0

I just tried with a Windows 7 on the same network (and mutlipath) and it's working.

Does it can be OS related?

Thanks again.

[BenHall]

Sounds like a potential Linux issue. Let me investigate. Thanks for telling us.

[alexandrestein]

Tell me if I can help.
If yes tell me who :smile:

[BenHall]

1) Just to double check, can you try directly on https://katacoda.com/kubernetes-bootcamp please ?
2) I'm guessing there are no JavaScript errors in the console?

[alexandrestein]

Sorry I messed up with my different devices...
The issue is still open.

The link you gave me works correctly.

You are right, there is no error in the console.

The error you see are just about fonts.

[BenHall]

Interesting, must be something to do with iFrames and cookies. Thanks for the additional info.

[zacharysarah]

@benhall Just to clarify, should this issue remain open?

[BenHall]

@zacharysarah Yes, working on this but haven't been able to reproduce yet. Will continue to explore.

[alexandrestein]

Hi,

Just to keep you inform.
I made a minor kernel update from 4.10.0-26-generic to 4.10.0-28-generic.
And I got the same behavior.

But I will reinstall my computer.
On the browser this is the only thing I noticed but my system has other problems.

Long story short, I probably won't be able to track this bug anymore.
It looks like I'm the only affected guy so this is probably not a big issue.

Thanks for the help.
Best regards

[BenHall]

Thanks for the update. It's a problem related to cookies and certain browser settings. We're working on a fix at the moment and should be live by the end of the week.

[alexandrestein]

So you are able to reproduce the problem?
Great work.

Thanks you for what your are doing.

[BenHall]

I believe we've deployed a fix to resolve this. If you get a moment, could you please retest @alexandreStein ?

Thank you

[alexandrestein]

Yes it's working.
I changed kernel and OS last week and it was behaving the same way.

I just tried with Chromium on Arch and it looks to be working as expected.

Thank you, feel free to close the issue.