Fix Iis 304 Error

If you are facing iis error 304 on your PC, then you should check out these troubleshooting tips.

An HTTP status code of 304 Unchanged means requested that the website has not generally been updated since the last visit. Normally, your browser saves (or caches) web pages, which means it doesn’t have to fetch the same information repeatedly.

We also ran into a bug, but we used the asset management archive (tape) of ASP.NET, IIS, and Cassette. I don’t know if this is your issue (when using separate Headers APIs instead of Cache but api’s), the pattern will most likely be the same.

Error 1

How do I fix Error 304?

Clear the cache data of this particular one About the browser.Run a malware scan.Disable extensions in your browser.flush DNS and thus reset TCP/IP.Try using Google’s public DNS.Check your server’s configuration files for invalid redirect instructions.

The cassette specifically specifies Vary: Accept-Encoding as a header added to its packet response, provided that it is Gzip/deflate:

capable of encoding the content

  • BundleRequestHandler: https://github.com/andrewdavey/cassette/blob/a2d9870eb0dc3585ef3dd542287595bc6162a21a/src/Cassette.Aspnet/BundleRequestHandler.cs#L78.
  • HttpResponseUtil: https://github.com/andrewdavey/cassette/blob/a2d9870eb0dc3585ef3dd542287595bc6162a21a/src/Cassette.Aspnet/HttpResponseUtil.cs#L45.
  • iis 304 error

    However, the ASP.net source cache always returns the solution that was cached first. If position first has Accept-Encoding: gzip call and Cassette returns data compressed by gzip, the ASP.NET output cache URL will .look like .Content-Encoding: .to .gzip .> .. Request next to the same URL but with a different valid channel (for example , Deflate) returns accept-encoding: cached response with Content-Encoding: gzip.

    Which HTTP status code is usually returned when a server is overloaded?

    503: "The server is not normally available to intelligently process this request at this time. The request" cannot be completed at this time. This code may be returned by an overloaded server that may not be able to handle additional requests.

    This cassette issue is caused by using this HttpResponseBase.Cache API to set cache options (for example, Cache-Control: public results). On the other hand, the HttpResponseBase API actually sets the Vary: Accept-Encoding header. The problem is that the ASP.NET header OutputCacheModule almost doesn't know the answer; only APIs work against each other through Cache. This means that the agency must silently use a tightly coupled API, not just the standard HTTP protocol.

    Error 2

    If you're using iis.5 7 (Windows Server 2008 R2), error #1 should cause a separate issue with the kernel and iis cache users. For example, if one package is successfully cached with Content-Encoding: il gzip, there are ways to see it in the IIS kernel cache with netsh http give cachestate. displays the response with status code 200 and media content and "gzip". If then applications are accepted Miscellaneous, Memes and Multimedia (eg.Accept-Encoding: deflate) and a If-None-Match header that matches the hash of the package will prevent the IIS kernel from accepting it and treat user-defined function caches as a bug. . So the feed request is processed by everyone that returns Https://github 304:

  • bundlerequesthandler:.com/andrewdavey/cassette/blob/a2d9870eb0dc3585ef3dd542287595bc6162a21a/src/Cassette.Aspnet/BundleRequestHandler.cs#L44
  • However, as soon as the user's IIS kernel process changes the response, it may detect that the response to get the URL has changed, and usually the cache needs to be refreshed. If the size of the IIS kernel cache is larger than netsh http show cachestate on , this time the cached 200 response is replaced with a 304 response. All subsequent questions group to regardless of Accept-Encoding< /code> and >If-None-Match returns the final 304 response. We've seen a devastating infographic of this error where all internet marketers have a 304 receipt in the middle of our script for an irrelevant request that probably had pesky Accept-Encoding< /code> and If come -No Match.

    iis 304 error

    The problem seems to be that the kernel and diet mode IIS caches can't change functions beyondAccept-Encoding heads. As evidence, using the cache API with your workaround below seems to ignore IIS core and tabbed mode caches (only the ASP .NET out memory cache is used in general). This can be expected by checking if netsh detect cachestate http is empty often using the following workaround. ASP.NET communicates directly with the IIS worker process to selectively enable and/or disable the IIS core and additional custom caches on a per-request basis.

    We are not able to reproduce this error on successful versions of IIS IIS (eg Express 10). However, error 1 has been reproduced before.

    Our initial fix for this single bug was to disable IIS kernel/user mode caching only for cartridges as requests, mentioned by others. So there is no bug in this group of ours.1 is exposed when you provide an additional layer of Connected Vor caching to our web servers and cleaning programs. The reason the string request hack works is because most OutputCacheModule will log a miss in the cache if you find the API was not cache used depends on QueryString and whether the request contains QueryString.

    Solution

    What is HTTP status error?

    http response status Indicates whether the given HTTP request was successful. Responses are generally classified into five classes: Informational comments (100-199) Successful responses (200-299) (Forwarded messages 300-399)

    We were planning on deprecating Cassette, so instead of leaving our own fork of Cassette (or trying to merge the PR), we decided to use the HTTP module to almost solve this problem.

    public class IHttpModule fixcassettecontentencodingoutputcachebugmodule: public void Init(HttpApplication context)            context.PostRequestHandlerExecute += Context_PostRequestHandlerExecute;        private Context_PostRequestHandlerExecute(Invalid object sender, EventArgs e)            httpContext var is HttpContext.Current;       if (httpContext == null)                    come back to;               request variable = httpContext.Request;       influence var = httpContext. response;     If (request.HttpMethod! is equal to "GET")                     come back to;              var path = request. track;       if or when (!path.StartsWith("/cassette.axd", StringComparison.InvariantCultureIgnoreCase))                    come back to;                if (response.Headers["Vary"] == "Accept encoding")                    httpContext.Response.Cache.VaryByHeaders.SetHeaders(new[] "Accept-Encoding" );               public delete() emptiness    

    Is 304 a cache?

    Diagnosing an unmodified 304 response code The 304-Not-Modified response code indicates that the requested resource has not been modified since the previous one was forwarded. This usually means that the requested resource does not need to be retransmitted to be sent to the client, and cached production can be used instead.

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