Gutenberg Custom Style problem with background image

When calls theme’s style.css file with add_editor_style inside gutenberg, background images are not loading properly. Lets say: #intro { background: url(assets/main.png) ; } Its working properly on front-end like: mydomain.com/wp-content/themes/mytheme/assets/main.png But when in gutenberg, WordPress tries to load: mydomain.com/wp-admin/assets/main.png Am i missing something?

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