# Setup Storefront v4.x as a Sub-application

**URL:** <https://www.virtocommerce.org/t/setup-storefront-v4-x-as-a-sub-application/232>\
**Category:** howto\
**Tags:** storefront\
**Created:** [June 4, 2020, 3:30pm UTC](https://www.virtocommerce.org/t/setup-storefront-v4-x-as-a-sub-application/232 "2020-06-04T15:30:46Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![eMazeika](https://yyz2.discourse-cdn.com/flex032/user_avatar/www.virtocommerce.org/emazeika/32/28_2.png) [@eMazeika](https://www.virtocommerce.org/u/eMazeika)\
**Post date:** [June 4, 2020, 3:30pm UTC](https://www.virtocommerce.org/t/setup-storefront-v4-x-as-a-sub-application/232/1 "2020-06-04T15:30:46Z")

</div>

**Setup Storefront v4.x as a Sub-application**

_ **The issue** _: a theme is not loaded properly, when Storefront is deployed as a Sub-application (e.g., _Application_ inside a website in IIS).

_ **Prerequisites** _:

- The pre-compiled binaries taken from [Storefront releases](https://github.com/VirtoCommerce/vc-storefront-core/releases)
- Storefront version \>= 4.1.8
- The app is configured as a sub-application

_ **Configuration** _: Setup Storefront as usual, then set the deployed app URL to use for each store in `VirtoCommerce.StoreUrls` setting. E.g.,

 ![Sample configuration in appsettings.json](https://canada1.discourse-cdn.com/flex032/uploads/virtocommerce/original/1X/ef731336e9620343cd78ac0bfb5c0d64324ebde1.png)

_ **More details** _: The incorrect routing was fixed in commit [https://github.com/VirtoCommerce/vc-storefront-core/commit/1b676bc8da7884205232d286afb5d3d4044eba68](https://github.com/VirtoCommerce/vc-storefront-core/commit/1b676bc8da7884205232d286afb5d3d4044eba68)