vendor-xxxxx.js loading slowly for Seq hosted on Windows servers

[larenelg]

Describe the bug
vendor-xxxxx.js taking longer than 30 seconds to load for customers with Seq hosted on Azure Windows VMs.

To Reproduce
Steps to reproduce the behavior:

1. Spin up a new instance of Seq on an Azure Windows VM.
2. Navigate to your Seq url.
3. Open browser developer tools.
4. See vendor-xxxxx.js loading for at least 30 seconds (~800kb)

Expected behavior
Even though the size of vendor-xxxxx.js is relatively large, it should only take 1-2 seconds to load, at the most.

Screenshots
If applicable, add screenshots to help explain your problem.

Environment (please complete the following information):

• OS: Windows
• Browser All
• Seq Version 2020.3, 2020.4
• Using Docker? No

Additional context
Problem seems to be related to using http.sys and using Response Compression in ASP.NET Core.
dotnet/aspnetcore#14455

[nblumhardt]

We're converting this to a discussion to track until we get an update on the upstream ticket.

[n1njab0b]

I'm having this exact problem with the current (2023.1.9229) release, inexplicably slow download of vendor-xxxxx.js in our browsers. Any workarounds for this? Perhaps somehow disabling response compression?

[nblumhardt]

Hi @n1njab0b - we've actually made a small configuration change in later 2023.x builds that may improve this. Do you still observe the issue after upgrading to 2023.3.9691?

[n1njab0b]

Following up on this to let you know that the problem is resolved on the latest update. Thanks again!

[nblumhardt]

Excellent! Thanks for closing the loop 👍

[n1njab0b]

Glad to hear! I’ll let you know when I get a maintenance window to update. On Aug 1, 2023, at 6:12 PM, Nicholas Blumhardt ***@***.***> wrote: Hi @n1njab0b - we've actually made a small configuration change in later 2023.x builds that may improve this. Do you still observe the issue after upgrading to 2023.3.9691? —Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you were mentioned.Message ID: ***@***.***>