Add preview handling

This commit is contained in:
nicwands
2026-06-01 11:08:03 -04:00
parent ef70a0c756
commit 6776a14757
18 changed files with 1186 additions and 14 deletions

193
STRAPI_PREVIEW_SETUP.md Normal file
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@@ -0,0 +1,193 @@
# Strapi Preview Implementation for Vike App
This document explains how to set up and use the Strapi Preview feature with this Vike application.
## Features Implemented
**Basic Preview** - Preview draft and published content from Strapi admin
**Dynamic Routes** - Support for articles, pages, and other content types
**Preview Banner** - Visual indicator when in preview mode
**Live Preview Ready** - Communication setup for real-time content updates
**Security** - CSP headers for safe iframe embedding
**Cache Control** - Preview content bypasses caching
## Setup Instructions
### 1. Frontend Configuration (Already Done)
The Vike app is now configured with:
- **Environment Variables** (`.env`):
```bash
VITE_CLIENT_URL=https://takerofnotes.com
VITE_PREVIEW_SECRET=preview-secret-key-change-this-in-production
```
- **Preview Route**: `/pages/preview/+data.js` and `/pages/preview/+Page.vue`
- **Enhanced Strapi Client**: Preview-aware data fetching
- **UI Components**: Preview banner and Live Preview communication
- **CSP Headers**: Allow embedding from Strapi admin
### 2. Strapi Configuration (To Do)
1. **Copy the admin configuration** from `strapi-config-example.js` to your Strapi project at `config/admin.js`
2. **Add environment variables** to your Strapi `.env`:
```bash
CLIENT_URL=https://takerofnotes.com
PREVIEW_SECRET=preview-secret-key-change-this-in-production
```
3. **Update the preview secret** in both frontend and Strapi to match
### 3. Content Type Setup
The implementation supports these content type patterns:
- **Global** (`api::global.global`) → `/` (homepage)
- **Pages** (`api::page.page`) → `/{slug}`
- **Articles** (`api::article.article`) → `/articles/{slug}`
Add more content types by:
1. Updating `getPreviewPathname()` in the Strapi config
2. Creating corresponding route files in `/pages/`
## How It Works
### Preview Flow
1. **Strapi Admin** → User clicks "Open Preview" on content
2. **Preview Handler** → Generates preview URL with secret and parameters
3. **Preview API** → Validates secret and redirects to content page with preview flags
4. **Content Page** → Detects preview mode and fetches draft content
5. **Preview Banner** → Shows preview status with exit option
### URL Structure
Preview URLs follow this pattern:
```
/preview?secret=xxx&path=/articles/my-article&status=draft&documentId=123&uid=api::article.article
```
Which redirects to:
```
/articles/my-article?preview=true&status=draft&documentId=123&uid=api::article.article
```
## File Structure
```
├── pages/
│ ├── preview/ # Preview route handler
│ │ ├── +Page.vue
│ │ └── +data.js
│ ├── @slug/ # Dynamic pages route
│ │ ├── +Page.vue
│ │ └── +data.js
│ ├── articles/@slug/ # Dynamic articles route
│ │ ├── +Page.vue
│ │ └── +data.js
│ ├── index/+data.js # Homepage with preview support
│ └── +Layout.vue # Updated with preview components
├── components/
│ ├── PreviewBanner.vue # Preview mode indicator
│ └── LivePreview.vue # Live Preview communication
├── libs/
│ └── strapi.js # Enhanced with preview support
└── strapi-config-example.js # Strapi admin configuration
```
## Adding New Content Types
To add preview support for a new content type:
1. **Update Strapi Config** (`config/admin.js`):
```js
case "api::my-content.my-content":
return `/my-content/${slug}`;
```
2. **Create Vike Route**:
```
pages/my-content/@slug/
├── +Page.vue
└── +data.js
```
3. **Implement Data Fetching**:
```js
import { getBySlug, getByDocumentId } from '@/libs/strapi'
export const data = async (pageContext) => {
// Extract preview parameters
const isPreview = searchParams.preview === 'true'
const status = searchParams.status || 'published'
// Fetch with preview support
const response = await getBySlug('my-content', slug, {
isPreview,
status
})
return { content: response.data, isPreview, status }
}
```
## Security Notes
- **Preview Secret**: Change the default secret in production
- **CSP Headers**: Only allow embedding from your Strapi domain
- **Environment Variables**: Use `VITE_` prefix for client-side access
- **Validation**: Preview API validates secret before redirecting
## Testing
### Test Preview Mode
1. Add `?preview=true&status=draft` to any URL
2. Should see orange preview banner
3. Content should be fetched with draft status
### Test Preview Route
Visit: `/preview?secret=your-secret&path=/&status=draft`
Should redirect to: `/?preview=true&status=draft`
## Live Preview (Strapi Growth/Enterprise)
The implementation includes Live Preview communication:
- **Real-time Updates**: Content changes in Strapi trigger page refresh
- **Interactive Editing**: Double-click content to edit (with proper source maps)
- **Source Maps**: Enable with `strapi-encode-source-maps` header
## Troubleshooting
### Preview Not Working
- Check environment variables match between frontend and Strapi
- Verify CSP headers allow iframe embedding
- Ensure Strapi admin config is properly deployed
### Content Not Loading
- Check Strapi API authentication
- Verify content type exists and has proper permissions
- Check browser network tab for failed requests
### Preview Banner Not Showing
- Verify URL contains `preview=true` parameter
- Check component import in Layout
- Ensure data is being passed correctly
## Development vs Production
### Development
- Use `http://localhost:3000` as CLIENT_URL
- Preview works locally during development
### Production
- Update CLIENT_URL to your production domain
- Ensure HTTPS for iframe embedding
- Update preview secret for security

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<template>
<!-- This component is invisible but handles Live Preview communication -->
<div style="display: none"></div>
</template>
<script setup>
import { onMounted, onUnmounted } from 'vue'
const STRAPI_ORIGIN = 'https://cms.takerofnotes.com'
/**
* Handle messages from Strapi's Live Preview
*/
const handleMessage = async (message) => {
const { origin, data } = message
// Only accept messages from our Strapi instance
if (origin !== STRAPI_ORIGIN) {
return
}
try {
switch (data.type) {
case 'strapiUpdate':
// Content has been updated in Strapi, refresh the page to show changes
console.log('Strapi content updated, refreshing preview...')
window.location.reload()
break
case 'strapiScript':
// Inject the Live Preview script for interactive editing
console.log('Injecting Live Preview script...')
const script = document.createElement('script')
script.textContent = data.payload.script
document.head.appendChild(script)
break
default:
// Unknown message type, ignore
break
}
} catch (error) {
console.error('Error handling Live Preview message:', error)
}
}
onMounted(() => {
// Add event listener for messages from Strapi
window.addEventListener('message', handleMessage)
// Signal to Strapi that we're ready to receive Live Preview scripts
try {
window.parent?.postMessage({ type: 'previewReady' }, STRAPI_ORIGIN)
console.log('Live Preview: Signaled ready to parent window')
} catch (error) {
console.error('Error signaling Live Preview readiness:', error)
}
})
onUnmounted(() => {
// Clean up event listener
window.removeEventListener('message', handleMessage)
})
</script>

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@@ -0,0 +1,106 @@
<template>
<div v-if="isPreview" class="preview-banner theme-dark">
<div class="preview-banner__content">
<div class="preview-banner__info">
<span class="preview-banner__label">Preview Mode</span>
<span class="preview-banner__status">{{ status }}</span>
</div>
<a
:href="exitPreviewUrl"
class="preview-banner__exit"
@click="exitPreview"
>
Exit Preview
</a>
</div>
</div>
</template>
<script setup>
import { computed } from 'vue'
const props = defineProps({
isPreview: {
type: Boolean,
default: false,
},
status: {
type: String,
default: 'published',
},
})
const exitPreviewUrl = computed(() => {
if (typeof window === 'undefined') return '/'
const url = new URL(window.location.href)
url.searchParams.delete('preview')
url.searchParams.delete('status')
url.searchParams.delete('documentId')
url.searchParams.delete('uid')
return url.toString()
})
const exitPreview = (event) => {
// For better UX, we can use client-side navigation instead of full page reload
event.preventDefault()
if (typeof window !== 'undefined') {
window.location.href = exitPreviewUrl.value
}
}
</script>
<style lang="scss" scoped>
.preview-banner {
position: fixed;
top: 0;
left: 0;
right: 0;
background: var(--theme-accent);
color: var(--theme-bg);
z-index: 9999;
padding: 8px 16px;
&__content {
display: flex;
align-items: center;
justify-content: space-between;
max-width: 1200px;
margin: 0 auto;
font-size: 14px;
font-weight: 500;
}
&__info {
display: flex;
align-items: center;
gap: 12px;
}
&__label {
font-weight: 600;
}
&__status {
background: rgba(255, 255, 255, 0.2);
padding: 2px 8px;
border-radius: 12px;
font-size: 12px;
text-transform: capitalize;
}
&__exit {
color: var(--theme-bg);
text-decoration: none;
padding: 4px 12px;
border: 1px solid rgba(255, 255, 255, 0.3);
border-radius: 4px;
transition: all 0.2s ease;
&:hover {
background: rgba(255, 255, 255, 0.15);
border-color: rgba(255, 255, 255, 0.5);
}
}
}
</style>

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@@ -5,7 +5,105 @@ export const strapiClient = strapi({
auth: import.meta.env.VITE_STRAPI_API_TOKEN, auth: import.meta.env.VITE_STRAPI_API_TOKEN,
}) })
export const getGlobal = async () => { /**
const globalManager = strapiClient.single('global') * Enhanced fetch function with preview support
return await globalManager.find() * @param {string} contentType - The Strapi content type (e.g., 'global', 'articles')
* @param {object} options - Fetch options including preview settings
* @param {boolean} options.isPreview - Whether this is a preview request
* @param {string} options.status - Content status ('draft' or 'published')
* @param {boolean} options.isSingle - Whether this is a single type or collection
* @param {object} options.params - Additional query parameters
* @returns {Promise} Strapi response
*/
export const fetchWithPreview = async (contentType, options = {}) => {
const {
isPreview = false,
status = 'published',
isSingle = false,
params = {},
...otherOptions
} = options
const queryParams = { ...params }
const headers = {}
// Add status parameter for draft content in preview mode
if (isPreview && status) {
queryParams.status = status
}
// Enable content source maps for Live Preview
if (isPreview) {
headers['strapi-encode-source-maps'] = 'true'
}
// Disable caching for preview requests
if (isPreview) {
headers['Cache-Control'] = 'no-cache'
}
try {
if (isSingle) {
const manager = strapiClient.single(contentType)
return await manager.find(queryParams, { headers, ...otherOptions })
} else {
const manager = strapiClient.collection(contentType)
return await manager.find(queryParams, { headers, ...otherOptions })
}
} catch (error) {
console.error(`Error fetching ${contentType}:`, error)
throw error
}
}
/**
* Fetch global content with preview support
*/
export const getGlobal = async (previewOptions = {}) => {
return await fetchWithPreview('global', {
isSingle: true,
...previewOptions,
})
}
/**
* Fetch a collection item by slug with preview support
*/
export const getBySlug = async (contentType, slug, previewOptions = {}) => {
return await fetchWithPreview(contentType, {
isSingle: false,
params: {
filters: { slug: { $eq: slug } },
populate: '*',
},
...previewOptions,
})
}
/**
* Fetch a single item by document ID (useful for preview)
*/
export const getByDocumentId = async (
contentType,
documentId,
previewOptions = {},
) => {
const { isSingle = false } = previewOptions
if (isSingle) {
return await fetchWithPreview(contentType, {
isSingle: true,
params: { documentId },
...previewOptions,
})
} else {
return await fetchWithPreview(contentType, {
isSingle: false,
params: {
filters: { documentId: { $eq: documentId } },
populate: '*',
},
...previewOptions,
})
}
} }

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@@ -1,6 +1,11 @@
<!-- https://vike.dev/Head --> <!-- https://vike.dev/Head -->
<template> <template>
<!-- Allow the app to be embedded in iframes from Strapi admin -->
<meta
http-equiv="Content-Security-Policy"
content="frame-ancestors 'self' https://cms.takerofnotes.com"
/>
<link rel="icon" href="/favicon.png" /> <link rel="icon" href="/favicon.png" />
</template> </template>

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@@ -1,8 +1,14 @@
<template> <template>
<lenis root> <lenis root>
<preview-banner
v-if="data"
:is-preview="data.isPreview"
:status="data.status"
/>
<div :class="classes"> <div :class="classes">
<slot /> <slot />
</div> </div>
<LivePreview v-if="data?.isPreview" />
</lenis> </lenis>
</template> </template>
@@ -11,7 +17,12 @@ import '@/styles/main.scss'
import { ref, computed, onMounted } from 'vue' import { ref, computed, onMounted } from 'vue'
import loadFonts from '@fuzzco/font-loader' import loadFonts from '@fuzzco/font-loader'
import { useWindowSize } from '@vueuse/core' import { useWindowSize } from '@vueuse/core'
import { useData } from 'vike-vue/useData'
import Lenis from '@/components/Lenis.vue' import Lenis from '@/components/Lenis.vue'
import PreviewBanner from '@/components/PreviewBanner.vue'
import LivePreview from '@/components/LivePreview.vue'
const data = useData()
const { height } = useWindowSize() const { height } = useWindowSize()

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@@ -1,14 +1,13 @@
import type { Config } from "vike/types"; import type { Config } from 'vike/types'
import vikeVue from "vike-vue/config"; import vikeVue from 'vike-vue/config'
// Default config (can be overridden by pages) // Default config (can be overridden by pages)
// https://vike.dev/config // https://vike.dev/config
export default { export default {
// https://vike.dev/head-tags title: 'My Vike App',
title: "My Vike App", description: 'Demo showcasing Vike',
description: "Demo showcasing Vike",
prerender: true, prerender: true,
extends: [vikeVue], extends: [vikeVue],
} as Config; } as Config

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pages/@slug/+Page.vue Normal file
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@@ -0,0 +1,85 @@
<template>
<main class="page">
<article v-if="page" class="page__content">
<header v-if="page.title" class="page__header">
<h1 class="page__title">{{ page.title }}</h1>
</header>
<div v-if="page.content" class="page__body">
<strapi-blocks :content="page.content" />
</div>
</article>
<div v-else class="page-not-found">
<h1>Page not found</h1>
<p>The requested page could not be found.</p>
</div>
</main>
</template>
<script setup>
import { useData } from 'vike-vue/useData'
const { page } = useData()
</script>
<style lang="scss" scoped>
.page {
max-width: 1200px;
margin: 0 auto;
padding: 2rem;
&__header {
margin-bottom: 3rem;
text-align: center;
}
&__title {
font-size: 3rem;
font-weight: 700;
line-height: 1.2;
margin: 0;
color: var(--theme-fg);
}
&__body {
line-height: 1.6;
:deep(h2) {
font-size: 2rem;
margin: 2.5rem 0 1rem 0;
}
:deep(h3) {
font-size: 1.5rem;
margin: 2rem 0 0.75rem 0;
}
:deep(p) {
margin: 1.25rem 0;
font-size: 1.1rem;
}
:deep(ul, ol) {
margin: 1.25rem 0;
padding-left: 2rem;
}
}
}
.page-not-found {
text-align: center;
padding: 4rem 0;
h1 {
font-size: 2.5rem;
margin-bottom: 1rem;
color: var(--theme-fg);
}
p {
font-size: 1.1rem;
color: var(--theme-fg-muted, #666);
}
}
</style>

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pages/@slug/+data.js Normal file
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@@ -0,0 +1,54 @@
import { getBySlug, getByDocumentId } from '@/libs/strapi'
export const data = async (pageContext) => {
const { routeParams, urlParsed } = pageContext
const { slug } = routeParams
const searchParams = urlParsed.search || {}
// Extract preview parameters from URL
const isPreview = searchParams.preview === 'true'
const status = searchParams.status || 'published'
const documentId = searchParams.documentId
const uid = searchParams.uid
try {
let page = null
// If we have a documentId from preview, fetch by document ID
if (isPreview && documentId && uid === 'api::page.page') {
const response = await getByDocumentId('pages', documentId, {
isPreview,
status,
isSingle: false
})
page = response.data?.[0] || null
} else {
// Normal fetch by slug
const response = await getBySlug('pages', slug, {
isPreview,
status
})
page = response.data?.[0] || null
}
return {
page,
// Pass preview state to the component
isPreview,
status,
documentId,
uid
}
} catch (error) {
console.error('Error fetching page:', error)
// Return null page but preserve preview state
return {
page: null,
isPreview,
status,
documentId,
uid
}
}
}

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@@ -0,0 +1,104 @@
<template>
<main class="article-page">
<article v-if="article" class="article">
<header class="article__header">
<h1 class="article__title">{{ article.title }}</h1>
<div v-if="article.publishedAt" class="article__meta">
<time :datetime="article.publishedAt">
{{ formatDate(article.publishedAt) }}
</time>
</div>
</header>
<div v-if="article.content" class="article__content">
<strapi-blocks :content="article.content" />
</div>
</article>
<div v-else class="article-not-found">
<h1>Article not found</h1>
<p>The requested article could not be found.</p>
</div>
</main>
</template>
<script setup>
import { useData } from 'vike-vue/useData'
const { article } = useData()
const formatDate = (dateString) => {
return new Date(dateString).toLocaleDateString('en-US', {
year: 'numeric',
month: 'long',
day: 'numeric'
})
}
</script>
<style lang="scss" scoped>
.article-page {
max-width: 800px;
margin: 0 auto;
padding: 2rem;
}
.article {
&__header {
margin-bottom: 2rem;
border-bottom: 1px solid var(--theme-border, #e0e0e0);
padding-bottom: 1rem;
}
&__title {
font-size: 2.5rem;
font-weight: 700;
line-height: 1.2;
margin: 0 0 1rem 0;
color: var(--theme-fg);
}
&__meta {
color: var(--theme-fg-muted, #666);
font-size: 0.9rem;
}
&__content {
line-height: 1.6;
:deep(h2) {
font-size: 1.8rem;
margin: 2rem 0 1rem 0;
}
:deep(h3) {
font-size: 1.4rem;
margin: 1.5rem 0 0.75rem 0;
}
:deep(p) {
margin: 1rem 0;
}
:deep(ul, ol) {
margin: 1rem 0;
padding-left: 2rem;
}
}
}
.article-not-found {
text-align: center;
padding: 4rem 0;
h1 {
font-size: 2rem;
margin-bottom: 1rem;
color: var(--theme-fg);
}
p {
color: var(--theme-fg-muted, #666);
}
}
</style>

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@@ -0,0 +1,55 @@
import { getBySlug, getByDocumentId } from '@/libs/strapi'
export const data = async (pageContext) => {
const { routeParams, urlParsed } = pageContext
const { slug } = routeParams
const searchParams = urlParsed.search || {}
// Extract preview parameters from URL
const isPreview = searchParams.preview === 'true'
const status = searchParams.status || 'published'
const documentId = searchParams.documentId
const uid = searchParams.uid
try {
let article = null
// If we have a documentId from preview, fetch by document ID
// This ensures we get the exact document being previewed
if (isPreview && documentId && uid === 'api::article.article') {
const response = await getByDocumentId('articles', documentId, {
isPreview,
status,
isSingle: false
})
article = response.data?.[0] || null
} else {
// Normal fetch by slug
const response = await getBySlug('articles', slug, {
isPreview,
status
})
article = response.data?.[0] || null
}
return {
article,
// Pass preview state to the component
isPreview,
status,
documentId,
uid
}
} catch (error) {
console.error('Error fetching article:', error)
// Return null article but preserve preview state for proper UI rendering
return {
article: null,
isPreview,
status,
documentId,
uid
}
}
}

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@@ -1,7 +1,28 @@
import { getGlobal } from '@/libs/strapi' import { getGlobal } from '@/libs/strapi'
export const data = async () => { export const data = async (pageContext) => {
const global = await getGlobal() const { urlParsed } = pageContext
const searchParams = urlParsed.search || {}
return { global: global.data } // Extract preview parameters from URL
const isPreview = searchParams.preview === 'true'
const status = searchParams.status || 'published'
const documentId = searchParams.documentId
const uid = searchParams.uid
// Fetch global content with preview support
const global = await getGlobal({
isPreview,
status,
...(documentId && { params: { documentId } })
})
return {
global: global.data,
// Pass preview state to the component
isPreview,
status,
documentId,
uid
}
} }

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@@ -0,0 +1,32 @@
<template>
<div class="unauthorized">
<h1>Unauthorized</h1>
<p>Invalid preview token. Please check your preview configuration.</p>
<p><a href="/">Return to homepage</a></p>
</div>
</template>
<style scoped>
.unauthorized {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
min-height: 50vh;
text-align: center;
}
h1 {
color: #dc3545;
margin-bottom: 1rem;
}
a {
color: #007bff;
text-decoration: none;
}
a:hover {
text-decoration: underline;
}
</style>

59
pages/preview/+Page.vue Normal file
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@@ -0,0 +1,59 @@
<template>
<div class="preview-redirect">
<h1>Preview Handler</h1>
<div v-if="error" class="error">
<h2>Debug Information</h2>
<p><strong>Error:</strong> {{ error }}</p>
<p v-if="pageContext"><strong>PageContext keys:</strong> {{ pageContext.join(', ') }}</p>
<pre v-if="urlParsed">{{ JSON.stringify(urlParsed, null, 2) }}</pre>
</div>
<div v-else-if="redirectUrl">
<p>Redirecting to preview...</p>
<p>If you are not redirected automatically, <a :href="redirectUrl">click here</a>.</p>
</div>
<div v-else>
<p>Processing preview request...</p>
</div>
</div>
</template>
<script setup>
import { useData } from 'vike-vue/useData'
import { onMounted } from 'vue'
const data = useData()
const { redirectUrl, error, pageContext, urlParsed } = data
onMounted(() => {
if (redirectUrl) {
window.location.href = redirectUrl
}
})
</script>
<style scoped>
.preview-redirect {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
min-height: 50vh;
text-align: center;
}
h1 {
margin-bottom: 1rem;
}
a {
color: #007bff;
text-decoration: none;
}
a:hover {
text-decoration: underline;
}
</style>

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pages/preview/+data.js Normal file
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@@ -0,0 +1,65 @@
import { redirect } from 'vike/abort'
export const data = async (pageContext) => {
try {
// Extract URL parameters safely
const { urlParsed } = pageContext
const searchParams = urlParsed?.search || {}
console.log('Preview route - pageContext keys:', Object.keys(pageContext))
console.log('Preview route - urlParsed:', urlParsed)
console.log('Preview route - searchParams:', searchParams)
const {
secret,
path = '/',
status = 'draft',
documentId,
uid
} = searchParams
// Validate preview secret
if (!secret || secret !== import.meta.env.VITE_PREVIEW_SECRET) {
console.log('Invalid secret:', secret, 'Expected:', import.meta.env.VITE_PREVIEW_SECRET)
throw redirect('/preview-unauthorized')
}
// Build the preview URL path (not full URL since we're redirecting within same origin)
const previewPath = path || '/'
const previewUrl = new URL(previewPath, 'http://localhost')
// Add preview parameters
previewUrl.searchParams.set('preview', 'true')
previewUrl.searchParams.set('status', status)
// Optional: include document metadata for advanced preview functionality
if (documentId) {
previewUrl.searchParams.set('documentId', documentId)
}
if (uid) {
previewUrl.searchParams.set('uid', uid)
}
const redirectUrl = previewUrl.pathname + previewUrl.search
console.log('Redirecting to:', redirectUrl)
// Use Vike's redirect
throw redirect(redirectUrl)
} catch (error) {
// If it's a redirect, let it pass through
if (error.redirectTo) {
throw error
}
console.error('Preview data error:', error)
// For debugging, let's not redirect on error, but show what went wrong
return {
redirectUrl: null,
error: error.message || 'Failed to process preview request',
pageContext: Object.keys(pageContext),
urlParsed: pageContext.urlParsed
}
}
}

118
strapi-config-example.js Normal file
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@@ -0,0 +1,118 @@
/**
* Strapi Admin Configuration for Preview Feature
*
* This file should be placed in your Strapi project at: config/admin.js
*
* Environment Variables Required in Strapi .env:
* CLIENT_URL=https://takerofnotes.com
* PREVIEW_SECRET=preview-secret-key-change-this-in-production
*/
/**
* Generate preview pathname based on content type and document
* @param {string} uid - Content type identifier (e.g., 'api::article.article')
* @param {object} options - Options containing locale and document data
* @returns {string|null} - The preview pathname or null if no preview available
*/
const getPreviewPathname = (uid, { locale, document }) => {
const { slug } = document || {};
switch (uid) {
// Global single type - preview on homepage
case "api::global.global":
return "/";
// Generic pages with slugs
case "api::page.page":
if (!slug) {
return null; // No slug, no preview
}
return `/${slug}`;
// Articles/blog posts
case "api::article.article":
if (!slug) {
return "/articles"; // Could redirect to articles index
}
return `/articles/${slug}`;
// Products (example)
case "api::product.product":
if (!slug) {
return "/products";
}
return `/products/${slug}`;
// Add more content types as needed
default:
// Return null for content types that shouldn't have previews
// (e.g., configuration, metadata, components)
return null;
}
};
// Main Strapi admin configuration
export default ({ env }) => {
// Get environment variables
const clientUrl = env("CLIENT_URL");
const previewSecret = env("PREVIEW_SECRET");
return {
// Other admin configurations can go here
// auth: { ... },
// apiToken: { ... },
preview: {
enabled: true,
config: {
// Allow preview iframe to load from your frontend domain
allowedOrigins: clientUrl,
/**
* Preview handler - generates preview URLs for content
* @param {string} uid - Content type UID
* @param {object} context - Preview context
* @param {string} context.documentId - Document ID being previewed
* @param {string} context.locale - Document locale
* @param {string} context.status - Document status ('draft' or 'published')
* @returns {string|null} - Preview URL or null to disable preview
*/
async handler(uid, { documentId, locale, status }) {
try {
// Fetch the complete document from Strapi
const document = await strapi.documents(uid).findOne({
documentId,
// Ensure we get the correct version based on status
...(status === 'draft' && { status: 'draft' })
});
// Generate the preview pathname
const pathname = getPreviewPathname(uid, { locale, document });
// If no pathname is generated, disable preview for this content type
if (!pathname) {
return null;
}
// Build preview URL with all necessary parameters
const urlSearchParams = new URLSearchParams({
path: pathname,
secret: previewSecret,
status: status || 'draft',
documentId,
uid,
...(locale && { locale })
});
// Return the complete preview URL pointing to your Vike app's preview page
return `${clientUrl}/preview?${urlSearchParams}`;
} catch (error) {
console.error('Preview handler error:', error);
return null;
}
},
},
},
};
};

96
test-preview.html Normal file
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<!DOCTYPE html>
<html>
<head>
<title>Test Strapi Preview Implementation</title>
<style>
body {
font-family: system-ui, sans-serif;
max-width: 800px;
margin: 2rem auto;
padding: 0 1rem;
line-height: 1.6;
}
.test-section {
margin: 2rem 0;
padding: 1rem;
border: 1px solid #ddd;
border-radius: 8px;
}
.test-link {
display: inline-block;
margin: 0.5rem 0;
padding: 0.5rem 1rem;
background: #007bff;
color: white;
text-decoration: none;
border-radius: 4px;
}
.test-link:hover {
background: #0056b3;
}
code {
background: #f5f5f5;
padding: 0.2rem 0.4rem;
border-radius: 3px;
}
pre {
background: #f5f5f5;
padding: 1rem;
border-radius: 4px;
overflow-x: auto;
}
</style>
</head>
<body>
<h1>Strapi Preview Implementation Test</h1>
<div class="test-section">
<h2>1. Test Preview Route (Valid Secret)</h2>
<p>This should redirect to the homepage with preview parameters:</p>
<a href="/preview?secret=preview-secret-key-change-this-in-production&path=/&status=draft" class="test-link">
Test Valid Preview
</a>
</div>
<div class="test-section">
<h2>2. Test Preview Route (Invalid Secret)</h2>
<p>This should show an unauthorized page:</p>
<a href="/preview?secret=wrong-secret&path=/&status=draft" class="test-link">
Test Invalid Preview
</a>
</div>
<div class="test-section">
<h2>3. Test Preview Mode Directly</h2>
<p>This should show the homepage with preview banner:</p>
<a href="/?preview=true&status=draft" class="test-link">
Test Preview Mode
</a>
</div>
<div class="test-section">
<h2>4. Test Article Preview (if you have articles)</h2>
<p>This should test dynamic route preview:</p>
<a href="/preview?secret=preview-secret-key-change-this-in-production&path=/articles/test-article&status=draft&documentId=123&uid=api::article.article" class="test-link">
Test Article Preview
</a>
</div>
<div class="test-section">
<h2>Expected Strapi Configuration</h2>
<p>For reference, your Strapi config should generate URLs like this:</p>
<pre><code>https://takerofnotes.com/preview?secret=preview-secret-key-change-this-in-production&path=/articles/my-article&status=draft&documentId=123&uid=api::article.article</code></pre>
</div>
<div class="test-section">
<h2>Environment Variables Check</h2>
<p>Make sure these are set in your <code>.env</code> file:</p>
<pre>VITE_CLIENT_URL=https://takerofnotes.com
VITE_PREVIEW_SECRET=preview-secret-key-change-this-in-production</pre>
<p>And in your Strapi <code>.env</code> file:</p>
<pre>CLIENT_URL=https://takerofnotes.com
PREVIEW_SECRET=preview-secret-key-change-this-in-production</pre>
</div>
</body>
</html>

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@@ -12,6 +12,13 @@ export default defineConfig({
'@': fileURLToPath(new URL('./', import.meta.url)), '@': fileURLToPath(new URL('./', import.meta.url)),
}, },
}, },
server: {
headers: {
// Allow the app to be embedded in iframes from Strapi admin
'Content-Security-Policy':
"frame-ancestors 'self' https://cms.takerofnotes.com",
},
},
css: { css: {
preprocessorOptions: { preprocessorOptions: {
scss: { scss: {