I have made a Angular 6 project with dependency Angularfire2 . I am using firestore and firebase storage. I have converted my app to angular universal and when i run server.js
it says listening on localhost:4000
but as soon as i open the browser with localhost:4200
the terminal shows the following error:
ReferenceError: XMLHttpRequest is not defined
Install these dependencies:
npm install --save-dev ws xmlhttprequest
Then add this to your server.ts
file
(global as any).WebSocket = require('ws');
(global as any).XMLHttpRequest = require('xmlhttprequest').XMLHttpRequest;
If you run into any other issue with SSR by using Firebase, check if this article already covers it .
Sources:
If anyone gets the same problem, the solution for me was to make sure that I did not import the HttpClientModule
in my child modules. Once it was already imported in the main AppModule
, the error went away.
Here is a link that gave me the solution https://www.thecodecampus.de/blog/angular-universal-xmlhttprequest-not-defined-httpclient/
For future reference using xmlhttprequest
didn't work me so I had to use xhr2
like so:
npm install ws xhr2 bufferutil utf-8-validate -D
ws
and xhr2
to server.ts
(global as any).WebSocket = require('ws');
(global as any).XMLHttpRequest = require('xhr2');
You have to install the @angular/platform-server
and import the ServerModule
. That provides server implementations of the DOM, XMLHttpRequest, and other low-level features that don't rely on a browser.
For more information see the universal guide
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.