WYSIWYG editor media attachment problem

System

Node.js version: LTS v14
NPM version: 6.14.11
Strapi version: 3.5.2
Database: sqlite
Operating system: Debian

Additional context

Hi, I have problem with default wyiwyg editor, when inserting media like image, it doesn’t show absolute path.
It should be like this
![2.png] (http://localhost:1337/uploads/image.png)

but it only appear

![2.png] (/uploads/image.png)

It caused my angular frontend doesn’t show the image from content.

How to fix it ??