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localhost is also a secure origin by browsers #309

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37e5576
localhost is also a secure origin by browsers
segevfiner Aug 7, 2025
967dee4
Try to fix tests
segevfiner Dec 2, 2025
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3 changes: 2 additions & 1 deletion lib/cookie.js
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Original file line number Diff line number Diff line change
Expand Up @@ -25,10 +25,11 @@ module.exports = class Cookie {
}

if (this.secure === 'auto') {
if (request.protocol === 'https') {
if (request.protocol === 'https' || request.hostname === 'localhost') {
this.secure = true
} else {
this.sameSite = 'lax'
this.partitioned = false
this.secure = false
}
}
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2 changes: 1 addition & 1 deletion lib/fastifySession.js
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Expand Up @@ -166,7 +166,7 @@ function fastifySession (fastify, options, next) {

const cookieSessionId = getCookieSessionId(request)
const saveSession = shouldSaveSession(request, cookieSessionId, saveUninitializedSession, rollingSessions)
const isInsecureConnection = cookieOpts.secure === true && request.protocol !== 'https'
const isInsecureConnection = cookieOpts.secure === true && request.protocol !== 'https' && request.hostname !== 'localhost'
const sessionIdWithPrefix = hasCookiePrefix ? `${cookiePrefix}${session.encryptedSessionId}` : session.encryptedSessionId
if (!saveSession || isInsecureConnection) {
// if a session cookie is set, but has a different ID, clear it
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2 changes: 2 additions & 0 deletions test/cookie.test.js
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Expand Up @@ -318,6 +318,7 @@ test('should set session cookie secureAuto', async (t) => {
t.after(() => { fastify.close() })

const response = await fastify.inject({
authority: 'fastify-session.test',
url: '/'
})

Expand Down Expand Up @@ -345,6 +346,7 @@ test('should set session cookie secureAuto change SameSite', async (t) => {
t.after(() => { fastify.close() })

const response = await fastify.inject({
authority: 'fastify-session.test',
url: '/'
})

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1 change: 1 addition & 0 deletions test/session.test.js
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Expand Up @@ -1231,6 +1231,7 @@ test('Override global options with regenerate', async t => {
fastify.register(fastifyCookie)
fastify.register(fastifySession, {
...DEFAULT_OPTIONS,
saveUninitialized: true,
cookie: {
secure: false,
maxAge: 42,
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2 changes: 1 addition & 1 deletion test/util.js
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Expand Up @@ -6,7 +6,7 @@ const fastifySession = require('../lib/fastifySession')
const TestStore = require('./TestStore')

const DEFAULT_SECRET = 'cNaoPYAwF60HZJzkcNaoPYAwF60HZJzk'
const DEFAULT_OPTIONS = { secret: DEFAULT_SECRET }
const DEFAULT_OPTIONS = { secret: DEFAULT_SECRET, saveUninitialized: false }
const DEFAULT_SESSION_ID = 'Qk_XT2K7-clT-x1tVvoY6tIQ83iP72KN'
const DEFAULT_ENCRYPTED_SESSION_ID = `${DEFAULT_SESSION_ID}.B7fUDYXU9fXF9pNuL3qm4NVmSduLJ6kzCOPh5JhHGoE`
const DEFAULT_COOKIE_VALUE = `sessionId=${DEFAULT_ENCRYPTED_SESSION_ID};`
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