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Prevent host rewriting on project site #6

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Merged
truegoodcraft merged 1 commit into from
Sep 15, 2026
Merged

Prevent host rewriting on project site #6

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3 changes: 2 additions & 1 deletion scripts/build-project.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -32,7 +32,8 @@ function projectHeaders(html: string, production: boolean): Record<string, strin
'X-Frame-Options': 'DENY',
'Permissions-Policy': 'geolocation=(), camera=(), microphone=(), payment=()',
...(production ? { 'Strict-Transport-Security': 'max-age=31536000' } : {}),
'Cache-Control': 'no-cache'
// Keep the host from rewriting mail links or injecting client scripts into this static artifact.
'Cache-Control': 'no-cache, no-transform'
};
}

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1 change: 1 addition & 0 deletions tests/contracts/project-site.test.ts
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Expand Up @@ -32,6 +32,7 @@ test('preview and production discovery policies stay distinct and aliases remain
assert.equal((await readFile(path.join(targets.preview, 'sitemap.xml'), 'utf8')).includes('<url>'), false);
assert.equal((await readFile(path.join(targets.production, 'sitemap.xml'), 'utf8')).match(/<loc>/g)?.length, 1);
const headers = await readFile(path.join(targets.production, '_headers'), 'utf8');
assert.equal(responseHeaders(headers, new URL('https://food-help.ca/'))['Cache-Control'], 'no-cache, no-transform');
assert.equal(responseHeaders(headers, new URL('https://food-help.ca/'))['X-Robots-Tag'], undefined);
assert.equal(responseHeaders(headers, new URL('https://project.pages.dev/'))['X-Robots-Tag'], 'noindex');
assert.equal(responseHeaders(headers, new URL('https://review.project.pages.dev/'))['X-Robots-Tag'], 'noindex');
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