node-XMLHttpRequest | XMLHttpRequest for node.js | Runtime Evironment library

This is not a duplicate of what-are-differences-between-xmlhttprequest-and-httprequest And for info, I tried this lib without success, because it copies the structure of the XMLHttpRequest but doesn't actually act like it.

I wonder what is the true network difference between HttpRequest from Node and XMLHttpRequest from a browser.

If I just watch the XMLHttpRequest inside chrome's devtools, I can't see any X-Requested-with header in the request.

Besides, there's an online service that is behind CloudFlare's WAF with custom rules. If I make the request with XMLHttpRequest, it just works, but I do it with https.request it fails being firewalled by CF.

I need to do it with HttpRequest so I can configure a proxy.

What is the network difference between the two, and how could I simulate a XMLHttpRequest from a HttpRequest ? And is that even possible ? I watched the source of chromium here but can't find anything interesting.

Maybe it differs from the IO layers ? TCP handshake ?

Advices required. Thanks

Here is the XMLHttpRequest (working)

I am writing a handler for an intent to generate a PDF. This API accepts a POST request with the JSON data and returns a link to the generated PDF. The intent triggers this code but the answer is not added to the agent. Is it possible that the request is not forwarded to the destination? The API seems to not get any requests. Any idea how to solve this?

I am trying to use Azure Function to call Ethereum using Web3.js, code seems to be working fine in the command shell but I get an error when I run it as a function.

On Azure Portal create a new Javascript Azure Function:

1. Go to Platform Features --> Development Tools --> Advanced Tools (kudu) --> Debug Console --> CMD

   cd site cd wwwroot cd npm install web3@^0.20.0

2. Create a new code.js file

   const Web3 = require('web3'); var web3 = new Web3(); const httpProv = new Web3.providers.HttpProvider("http://:8545"); web3.setProvider(httpProv); console.log(web3.eth.blockNumber);

3. Execute this file in CMD shell

   node code.js

4. Works fine, I can see a HTTP Post request

   Request:

   POST / HTTP/1.1 User-Agent:node-XMLHttpRequest Accept:/ Content-Type: application/json Host: : Content-Length:63 Connection:close

   {"jsonrpc":"2.0", "id":1,"method":"eth_blockNumber","params":[]}

Response:

I am trying to build a messenger bot which does some image processing in 3d and returns a brand new image. I use THREE.CanvasRenderer and my app is hosted on Heroku.

When a user /POSTs an attachment to my webhook, I want to take the URL of the newly created image and insert it into my 3d Scene.

This is my code (using the node-canvas library):