Deploy Angular App w/ Proxy for One Route - node.js

Question

I have an Angular app w/ a proxy that's working well in local. There's one route that utilizes it with a Node API call.
Node.js
const express = require('express');
const api_service = require('./apiService');
const app = express();
app.get('/getData/:date', (req, res) => {
const date = req.params.date;
api_service.fetchData(...)
.then(response => {
res.json(response)
})
.catch(error => {
res.send(error)
})
})
app.listen(3000, () => {
console.log("Server started in port 3000!");
});
Function in my Angular Service:
fetchData(date: string) {
const requestOptions: Object = {
responseType: 'text',
};
this._http
.get<string>('/api/getData/' + date)
.pipe(
map((data) => {
this.result = data;
})
)
.subscribe((data) => {
this.mediaSource.next(this.result);
if (Object.keys(this.result).length != 0) {
this.history.push(this.result);
}
});
}
proxy-prod.config.json
{
"/api/*": {
"target": "https://example.com",
"secure": false,
"changeOrigin": true,
"logLevel": "debug",
"pathRewrite": { "^/api": "" }
}
}
proxy-local.conf.json
{
"/api/*": {
"target": "http://localhost:3000",
"pathRewrite": {
"^/api": ""
},
"secure": false,
"changeOrigin": true,
"logLevel": "debug"
}
}
angular.json
"serve": {
"builder": "#angular-devkit/build-angular:dev-server",
"options": {
"browserTarget": "ui-dev:build",
"proxyConfig": "proxy-local.conf.json"
},
"configurations": {
"production": {
"browserTarget": "ui-dev:build:production",
"proxyConfig": "proxy-prod.config.json"
}
}
},
ng serve works perfectly.
ng serve --prod and ng build --aot --prod --output-hashing none do not.
The error I'm getting is:
headers: d, status: 200, statusText: 'OK', url: 'myexample.com', ok: false
I've tried this in my request but they cause errors too:
const headers = new HttpHeaders().set('Content-Type', 'text/plain; charset=utf-8');
{ headers, responseType: 'text'}
Been searching, testing, and dissecting code for many hours and not sure how to proceed. Can you anyone assist?
Thanks