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chore: update nonce docs about unsafe-inline during development #240

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merged 1 commit into from Oct 12, 2023
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chore: update nonce docs about unsafe-inline during development #240

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15 changes: 11 additions & 4 deletions docs/content/1.documentation/2.headers/1.csp.md
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Expand Up @@ -160,10 +160,15 @@ export default defineNuxtConfig({
nonce: true,
headers: {
contentSecurityPolicy: {
'style-src': [
"'self'", // fallback value for older browsers, automatically removed if `strict-dynamic` is supported.
"'nonce-{{nonce}}'",
],
'style-src':
process.env.NODE_ENV === 'production'
? [
"'self'", // backwards compatibility for older browsers that don't support strict-dynamic
"'nonce-{{nonce}}'",
"'strict-dynamic'",
]
: // In dev mode, we allow unsafe-inline so that hot reloading keeps working
["'self'", "'unsafe-inline'"],
'script-src': [
"'self'", // fallback value for older browsers, automatically removed if `strict-dynamic` is supported.
"'nonce-{{nonce}}'",
Expand All @@ -181,6 +186,8 @@ export default defineNuxtConfig({
```

This will add a `nonce` attribute to all `<script>`, `<link>` and `<style>` tags in your application.
Note that to allow hot reloading during development, we conditionally add `'unsafe-inline'` to the `style-src` value.

The `nonce` value is generated per request and is added to the CSP header. This behaviour can be tweaked on a route level by using the `routeRules` option:

```ts
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