GX-Feature #69226
Von Alexandre Ataides vor mehr als 2 Jahren aktualisiert
**Problem:**
When a shop has a lot of simultaneous access and meanwhile the shop owner is adding/updating/deleting some information of his shop, the `dynamic_theme_style.css.php` (responsible for compiling the CSS of the theme) is called multiple times, increasing the page load time of the shop.
**Goal:**
We should prevent that the CSS compiler runs on every call.
We need to lock the `dynamic_theme_style.css.php` file until the new CSS is compiled/generated.
**How to test:**
1. Apply attached patch (optional)
1. Open 2 browser tabs, side by side with the DevTool open (Network tab and filter by `CSS`)
1. Delete only the `cache/__dynamic.css` file and call the shop
1. First tab: CSS should be served with the `dynamic_theme_style.css.php`
1. Second tab: CSS should be served with the `main.css/main.min.css`
1. Delete only the `public/theme/main.css` or `public/theme/main.min.css` file and call the shop
1. Both tabs: CSS should be served with the `dynamic_theme_style.css.php`
1. The second tab should wait until the `dynamic_theme_style.css.php` file of the first tab is loaded
1. Delete `cache/__dynamic.css` and `public/theme/main.css` or `public/theme/main.min.css` files and call the shop
1. Both tabs: CSS should be served with the `dynamic_theme_style.css.php`
1. The second tab should wait until the `dynamic_theme_style.css.php` file of the first tab is loaded