[GH-ISSUE #7310] Edge strict MIME Type #30165

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GiteaMirror · 2026-06-17T09:55:22-05:00

GiteaMirror commented

2026-06-17 09:55:22 -05:00

Originally created by @mehmetaksakal on GitHub (Jun 7, 2026).
Original GitHub issue: https://github.com/dani-garcia/vaultwarden/issues/7310

Prerequisites

I have searched the existing Closed AND Open Issues AND Discussions
I have searched and read the documentation

Vaultwarden Support String

Vaultwarden does not work in Edge since it enabled strict MIME type by default.

(index):1 Refused to apply style from 'https://*****/styles.b355f1411297a6b3cb77.css' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled. polyfills.eaa824f1d17b38ec6a59.js:1 Failed to load resource: the server responded with a status of 404 (Not Found) (index):1 Refused to execute script from 'https://*****/app/polyfills.eaa824f1d17b38ec6a59.js' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled. main.3d3efad53be40f434708.js:1 Failed to load resource: the server responded with a status of 404 (Not Found) (index):1 Refused to execute script from 'https://*****/app/main.3d3efad53be40f434708.js' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled. vendor.6432a3f0191fa2251bd8.js:1 Failed to load resource: the server responded with a status of 404 (Not Found) (index):1 Refused to execute script from 'https://*****/app/vendor.6432a3f0191fa2251bd8.js' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled. 70501c97b33df95adb32.json:1 Failed to load resource: the server responded with a status of 404 (Not Found) (index):1 Manifest fetch from https://*****/70501c97b33df95adb32.json failed, code 404 70501c97b33df95adb32.json:1 Failed to load resource: the server responded with a status of 404 (Not Found) (index):1 Manifest fetch from https://*****/70501c97b33df95adb32.json failed, code 404 (index):1 Refused to apply style from 'https://*****/styles.b355f1411297a6b3cb77.css' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled. 70501c97b33df95adb32.json:1 Failed to load resource: the server responded with a status of 404 (Not Found)

Vaultwarden Build Version

Latest

Deployment method

Official Container Image

Custom deployment method

No response

Reverse Proxy

Nginx

Host/Server Operating System

Linux

Operating System Version

Ubuntu 24

Clients

Web Vault

Client Version

Latest

Steps To Reproduce

Use an Edge version with strict MIME type enabled

Expected Result

Page to load

Actual Result

Edge refuses to load

Logs

Screenshots or Videos

No response

Additional Context

No response

Originally created by @mehmetaksakal on GitHub (Jun 7, 2026). Original GitHub issue: https://github.com/dani-garcia/vaultwarden/issues/7310 ### Prerequisites - [x] I have searched the existing **Closed _AND_ Open** [Issues](https://github.com/dani-garcia/vaultwarden/issues?q=is%3Aissue%20) **_AND_** [Discussions](https://github.com/dani-garcia/vaultwarden/discussions?discussions_q=) - [x] I have searched and read the [documentation](https://github.com/dani-garcia/vaultwarden/wiki/) ### Vaultwarden Support String Vaultwarden does not work in Edge since it enabled strict MIME type by default. `(index):1 Refused to apply style from 'https://*****/styles.b355f1411297a6b3cb77.css' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled. polyfills.eaa824f1d17b38ec6a59.js:1 Failed to load resource: the server responded with a status of 404 (Not Found) (index):1 Refused to execute script from 'https://*****/app/polyfills.eaa824f1d17b38ec6a59.js' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled. main.3d3efad53be40f434708.js:1 Failed to load resource: the server responded with a status of 404 (Not Found) (index):1 Refused to execute script from 'https://*****/app/main.3d3efad53be40f434708.js' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled. vendor.6432a3f0191fa2251bd8.js:1 Failed to load resource: the server responded with a status of 404 (Not Found) (index):1 Refused to execute script from 'https://*****/app/vendor.6432a3f0191fa2251bd8.js' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled. 70501c97b33df95adb32.json:1 Failed to load resource: the server responded with a status of 404 (Not Found) (index):1 Manifest fetch from https://*****/70501c97b33df95adb32.json failed, code 404 70501c97b33df95adb32.json:1 Failed to load resource: the server responded with a status of 404 (Not Found) (index):1 Manifest fetch from https://*****/70501c97b33df95adb32.json failed, code 404 (index):1 Refused to apply style from 'https://*****/styles.b355f1411297a6b3cb77.css' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled. 70501c97b33df95adb32.json:1 Failed to load resource: the server responded with a status of 404 (Not Found) ` ### Vaultwarden Build Version Latest ### Deployment method Official Container Image ### Custom deployment method _No response_ ### Reverse Proxy Nginx ### Host/Server Operating System Linux ### Operating System Version Ubuntu 24 ### Clients Web Vault ### Client Version Latest ### Steps To Reproduce Use an Edge version with strict MIME type enabled ### Expected Result Page to load ### Actual Result Edge refuses to load ### Logs ```text ``` ### Screenshots or Videos _No response_ ### Additional Context _No response_

GiteaMirror added the bug label 2026-06-17 09:55:22 -05:00

GiteaMirror closed this issue

2026-06-17 09:55:24 -05:00

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Reference: github-starred/vaultwarden#30165