Blazor sample app slow loading while develop

Question

I created a new Blazor Web Assembly app from visual studio 2022, and I got the usual template application with a counter button

When I run this app from my development machine, the first load take 20 seconds. Every time I change something in the code and re-run the application it takes 20 seconds to load.

Is this the normal behaviour or do I have something wrong on my development machine?

It's very hard to develop something if you have to wait 20 seconds everytime you want to test a modification

Looking at the network tab of the browser I see this:

As you can see 21.76 MB of resource are cached, and only 0.04 MB are downloaded from the network. So why does it take so long?

I have the same problem. It's basically unusable like this

Gordon Rudman
– Gordon Rudman

2022-08-03 02:36:44 +00:00
Commented Aug 3, 2022 at 2:36 — Gordon Rudman
– Gordon Rudman, Commented Aug 3, 2022 at 2:36

Ludovico · Accepted Answer · 2022-08-03 10:27:18Z

5

I find out that the problem is the antivirus used by my company, ESET

Seems that it has some kind of checks that takes 20 seconds to analyze web assembly

I had to completely uninstall the antivirus to avoid the problem

answered Aug 3, 2022 at 10:27

Ludovico

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