Erratic & slow forum SW performance

[QMuse]

In last few months I've been experiencing erratic and slow response from forum SW, on both Chrome and Edge. My platform is Win 10, fully updated to last version.

Erratic and slow response is happening only when I'm logged in and here's how it looks practically every time when I'm trying to make a post:

Response is also very slow when I'm reading the posts and very often I get only blank page. It takes several reload tries to get the page right. Any advice is appreciated, but I have a feeling this is not a problem on my side as my Windows 10, Chrome and Edge are otherwise behaving perfectly normal.

 

[Soniclife]

I've not seen that.

Have you power cycled every bit of kit in the chain you control from ISP to PC?

 

[QMuse]

I've not seen that.

Have you power cycled every bit of kit in the chain you control from ISP to PC?

M8, as I said, everything else works fine, and that certainly won't help with CORS related issue.

Cross-Origin Resource Sharing (CORS) is a mechanism that browsers use to restrict HTTP and HTTPS requests made from scripts to resources in a different origin for security reasons, mainly to protect your user's data and prevent attacks that would compromise your app.

 

[hege]

Zeerroo problems ever, and I check in here constantly with PC and Android. Pretty sure it's you (or Chrome..).

 

[Soniclife]

M8, as I said, everything else works fine, and that certainly won't help with CORS related issue.

I've seen several network issues that make absolutely no sense, and the tests all show it working correctly, fixed by power cycling bits of kit you previously though worked flawlessly. In my case I once had a 4 port unmanaged switch, with 10 years perfect record be the culprit, and it had been moved only a few weeks before giving it a power cycle.

 

[QMuse]

Zeerroo problems ever, and I check in here constantly with PC and Android. Pretty sure it's you (or Chrome..).

No need for guessing, it says clearly in the first post that CORS policy is the problem. As I said, same thing when using Edge browser..

 

[Soniclife]

Also, does it do the same on a phone or the tablet?

 

[QMuse]

Also, does it do the same on a phone or the tablet?

Same thing with Chrome on Android. And that provides ground for various conspiracy theories..

 

[BDWoody]

Same thing with Chrome on Android. And that provides ground for various conspiracy theories..

Probably just Karma...

 

[hege]

No need for guessing, it says clearly in the first post that CORS policy is the problem. As I said, same thing when using Edge browser..

Nope, not seeing this on Linux Chrome 85, even tried logging in and posting to test forum.

 

[Soniclife]

Same thing with Chrome on Android. And that provides ground for various conspiracy theories..

Are you on a watch list?

 

[QMuse]

Nope, not seeing this on Linux Chrome 85, even tried logging in and posting to test forum.

I never claimed it happens with other users, only mine.

 

[Deleted member 65]

No need for guessing, it says clearly in the first post that CORS policy is the problem. As I said, same thing when using Edge browser..

View attachment 85836

Few years back my dpt was subject to an IBM Corporate Audit. One of the remarks we got was not having implemented the CORS policy on one of the many firewalls we had. Can’t remember if we had to upgrade FW or a policy change.

Do you have a local firewall that needs investigating?

 

[hege]

I never claimed it happens with other users, only mine.

Well it doesn't seem like you were completely sure.

Obviously you need to first try other browsers PCs and other networks to connect from. Maybe you have some stupid router etc.

 

[QMuse]

Are you on a watch list?

I don't know what is a "watch list".

 

[Deleted member 65]

Cache cleared?

 

[QMuse]

Few years back my dpt was subject to an IBM Corporate Audit. One of the remarks we got was not having implemented the CORS policy on one of the many firewalls we had. Can’t remember if we had to upgrade FW or a policy change.

Do you have a local firewall that needs investigating?

Only standard Windows FW which couldn't care less about CORS.

Cache cleared?

That was the first thing I tried.

 

[Soniclife]

I don't know what is a "watch list".

E.g.
https://en.m.wikipedia.org/wiki/Interpol_Terrorism_Watch_List

Was meant to be a joke based on your conspiracy theory quip.

 

[Soniclife]

Same thing with Chrome on Android. And that provides ground for various conspiracy theories..

Does it do the same thing on mobile data?

 

[Deleted member 65]

Noted you run Chrome v85, check this change in CORS policy as of v85.

https://www.chromium.org/Home/chromium-security/extension-content-script-fetches