AnsweredAssumed Answered

Deploying Web App Builder App to Custom URL - App Not Loading

Question asked by epd_llc on Jun 8, 2018
Latest reply on Jul 22, 2019 by rscheitlin

I have been trying to deploy a simple web app to our website for the last two days, but have not been able to get it to load. I have gone through the process several times, but I must be missing something. The web app ( displays the loading bars for a bit and then times out.


Here is what I have done so far:


1. Installed Web App Builder 2.8


2. Registered web App Builder


3. Opened Web App Builder and created a simple web app that points to a map and data on our ArcGIS Online account that is all shared publicly. The Web App successfully launches from within Web App Builder.


4. Downloaded the Web App as a zip file from Web App Builder, unzipped it, and deployed it to a test domain using an FTP:

Set up a Proxy following these directions:

This is the code for my proxy.config file, I’m using the ClientId and ClientSecret from my registered Web App Builder 2.8:

<?xml version="1.0" encoding="utf-8" ?>

<ProxyConfig allowedReferers="*"



        <serverUrl url=""


        <serverUrl url="http://"



        <serverUrl url=""








5. To test the proxy, per the readme file, I entered into my browser and received this response:

{ "Proxy Version": "1.1.2", "Configuration File": "OK", "Log File": "Not Exist/Readable"}


6. Then I tested if I could access a service through the proxy by entering into my browser. The json displayed in my browser.


7. Next I opened the config.json file for the Web App I had downloaded and updated the poxy URL:


  "wabVersion": "2.8",

  "isTemplateApp": true,

  "isWebTier": false,

  "httpProxy": {

    "useProxy": true,

    "alwaysUseProxy": false,

    "url": "",

    "rules": []



8. Then I added the App following these instructions: 

I wasn’t sure whether the data source should be  or  so I tried both. I registered each and received an AppId for each.


9. I tried adding each AppId in the config.json file, saving, and replacing via the FTP, but neither worked.


I am still only getting the loading screen when I go to I feel like I have followed all the instructions perfectly – and I know the Web App Builder install and proxy are working correctly. What am I doing wrong?