topic Re: Unable to load config.json error...file exists on server in Web AppBuilder Custom Widgets Questions

Unable to load config.json error...file exists on server

KenBuja — Mon, 25 Feb 2019 20:25:28 GMT

I am getting the error "Unable to load config.json?wab_dv=2.8 status: 404 and an error in handleAs: transformation of response" on a web site I've deployed. It's a duplicate (with a few minor changes) of another site that I've deployed that works. The config.json file exists on the server for both sites.

Both sites work properly on our staging server.

Why would I be getting the error on the production server for one but not the other?

Re: Unable to load config.json error...file exists on server

RobertScheitlin__GISP — Mon, 25 Feb 2019 21:47:02 GMT

Ken,

That is strange. Are both site configured as application in IIS?

It is not serving the appinfo.json file either.... But all the other files are coming up like the config-readme.txt, readme.html, etc in the main app folder.

Re: Unable to load config.json error...file exists on server

RobertScheitlin__GISP — Mon, 25 Feb 2019 21:53:01 GMT

Ken,

OK after some further testing that app will not serve up any json files at all. Not for the widgets either. It's like you only configured the json mime type for that other app folder and not your whole IIS instance.

Re: Unable to load config.json error...file exists on server

KeithFraley1 — Mon, 25 Feb 2019 22:06:47 GMT

Hi Robert, do you ever develop widgets as a side gig?

Re: Unable to load config.json error...file exists on server

RobertScheitlin__GISP — Mon, 25 Feb 2019 22:24:46 GMT

Sorry No.

Re: Unable to load config.json error...file exists on server

KeithFraley1 — Mon, 25 Feb 2019 22:31:24 GMT

cheers, figured it was worth a try:)

Re: Unable to load config.json error...file exists on server

KenBuja — Tue, 26 Feb 2019 13:31:41 GMT

From the IT dept: Yes, they are configured in IIS

Re: Unable to load config.json error...file exists on server

KenBuja — Sun, 12 Dec 2021 07:41:35 GMT

The web.config files for both sites are identical:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
    <system.webServer>
        <staticContent>
            <!-- Configure site to serve JSON files -->
            <remove fileExtension=".json" />
            <mimeMap fileExtension=".json" mimeType="application/json" />
            <!-- Configure site to serve font files -->
            <remove fileExtension=".otf" />
            <mimeMap fileExtension=".otf" mimeType="font/otf" />
        </staticContent>
    </system.webServer>
</configuration>‍‍‍‍‍‍‍‍‍‍‍‍‍

Is there something else I should look at in the files?

Re: Unable to load config.json error...file exists on server

RobertScheitlin__GISP — Tue, 26 Feb 2019 13:41:21 GMT

Ken,

The only time I have seen IIS refuse to serve a particular file type has been when there is a MIME issue. Both sites have the woff2 mime type missing.

Re: Unable to load config.json error...file exists on server

KenBuja — Tue, 26 Feb 2019 14:13:11 GMT

This was missing from the root level configuration:

<mimeMap fileExtension=".woff2" mimeType="application/x-font-woff" />‍

What was odd is that one site would work but the other wouldn't.

Re: Unable to load config.json error...file exists on server

RobertScheitlin__GISP — Tue, 26 Feb 2019 14:20:05 GMT

That is strange. Glad it is working now though.

Re: Unable to load config.json error...file exists on server

KenBuja — Tue, 26 Feb 2019 14:26:45 GMT

So am I! I always appreciate your help, Robert