ERROR 404.3 Not Found for JSON file

Question

I have been getting the "ERROR 404.3 Not Found" for JSON file that I am calling using AJAX call on "Internet Information Services 7.5" even after I have activated all the "Application Development Features". Other than JSON file, all other files are getting loaded.

I am running an HTML page on IIS server on my local machine.

If I open the file directly then there is no problem at all. When I host the files on an online server it works fine.

Any quick help will be much appreciated.

Solution 1

Is the file you try to receive in the same domain? Or do you fetch the json from another server? If it is hosted on a different domain, you'll have to use JSONP due to same origin policy.

Solution 2

As suggested by @ancajic i put the below code after connectionString tag in my web.config file and it worked.

  <system.webServer>
    <staticContent>
      <mimeMap fileExtension=".json" mimeType="application/json" />
    </staticContent>
  </system.webServer>

Solution 3

As said by @elasticman, it is necessary to open IIS Manager -> Mime types -> Add a new mime type with

Extension: .json MIME Type: application/json

But for me that still wasn't enough. I have an ASP.NET MVC 4 application, and I had to modify my root Web.config file.

Insert

<staticContent>
  <mimeMap fileExtension=".json" mimeType="application/json" />
</staticContent>

somewhere inside your

<system.webServer>
    ...
</system.webServer>

Solution 4

Option 1

1. Go to IIs

2. Select Website

3. Double Click Mime Type Icon Under IIs

4. Click Add Link in right hand side

5. File Name Extension = .json Mime Type = application/json

6. Click Ok.

Option 2

Update your web.config file like this

<system.webServer>
    <staticContent>
      <mimeMap fileExtension=".json" mimeType="application/json" />
    </staticContent>
</system.webServer>

I hope your problem is resolved

Solution 5

If you are using IIS Express with Visual Studio, IIS Manager won't work for IIS Express. Instead, you need to open this config file from %userprofile%\documents\IISExpress\config\applicationhost.config and insert

<staticContent>
  <mimeMap fileExtension=".json" mimeType="application/json" />
</staticContent>

along with all other pre-defined mime types.

View more solutions

Comments

[Nitin Suri]

it's the same domain, below is the folder structure: root folder index.html - data/data.json - js/js.js

[elasticman]

Okay, the problem is that IIS has no JSON-File type by default (MIME) so you have to set it up: To set this for the entire server: 1. Open properties for your server in your IIS Manager and go for MIME Types. 2. Use "New" and enter "JSON" as extension and "application/json" for MIME.

[Nitesh]

thanks elasticman, iis has no json file type and does not recognise it.

[Rich Finelli]

Thanks I was having trouble figuring out where to put <staticContent> and knowing to put it inside of <system.webServer> was what made it work! Thanks!

[userJT]

where do I find web.config file?

[hi0001234d]

great! saved my hours!