ASP.NET 核心捕获 HTTP 状态码 413 载荷太大/请求实体太大

Question

In Statup.cs -> Configure:

app.UseStatusCodePagesWithReExecute("/StatusCodeError/{0}");

I was trying to capture this one: 413 Payload Too Large , Previously called " Request Entity Too Large "

I just cant seem to get any middleware to fire when a 413 is triggered, guess IIS looks after it?

Just want to know the best approach to handle this as don't really want to show the user the default iis error message.

I tried adding this in to the web.config, but then this stopped other status codes working eg 404:

<httpErrors errorMode="Custom" existingResponse="Replace">
  <remove statusCode="413" />
  <error statusCode="413" path="/StatusCodeError/413" responseMode="Redirect" />
</httpErrors>

Thank you

Answer 1

I figured out what was happening why the status code error page was not displaying.

I added this to StatusCodeError.cshtml.cs

public void OnPost(int statusCode)
{
      OnGet(statusCode);
}

All my code was in the OnGet, but because the status code 413 was triggered on a POST nothing was happening.