preview-import

Preview Import

Open and verify imported content in local development server.

When to Use This Skill

Use this skill when:

• You have generated HTML file (from generate-import-html)
• Ready to preview in browser and verify rendering
• Need to compare with original page structure

Invoked by: page-import skill (Step 5)

Prerequisites

From previous skills, you need:

• ✅ HTML file at correct path (from generate-import-html)
• ✅ Images folder in same directory
• ✅ screenshot.png from scrape-webpage (for comparison)
• ✅ documentPath from metadata.json (for URL construction)

Related Skills

• page-import - Orchestrator that invokes this skill
• generate-import-html - Provides HTML file to preview
• scrape-webpage - Provides screenshot for comparison

Preview Workflow

Step 1: Start Development Server with HTML Folder Flag

Determine the folder from metadata.json:

• Look at paths.dirPath from metadata.json (e.g., /us)
• This is the root folder containing your imported HTML file

Command:

aem up --html-folder {dirPath}

Examples based on imported content location:

HTML File Location	Command	Preview URL
us/en.plain.html	aem up --html-folder us	http://localhost:3000/us/en
products/widget.plain.html	aem up --html-folder products	http://localhost:3000/products/widget
blog/2024/post.plain.html	aem up --html-folder blog	http://localhost:3000/blog/2024/post

Why this is required:

• Without --html-folder, AEM CLI proxies requests to the remote server
• The remote server doesn't have your locally imported content
• Result: 404 "Page not found" errors

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Step 2: Navigate in Browser

For most files, use the document path directly:

http://localhost:3000${documentPath}

Example:

• HTML file: us/en/about.plain.html
• URL: http://localhost:3000/us/en/about

IMPORTANT: For index files, use / instead of /index:

If file is: index.plain.html
Preview at: http://localhost:3000/
NOT: http://localhost:3000/index

Note: If you used --html-folder flag (e.g., aem up --html-folder drafts), prepend that folder to the URL:

File: drafts/test.plain.html
URL: http://localhost:3000/drafts/test

Use paths.documentPath from metadata.json, but for index files ensure the path is / not /index

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Step 3: Verify Rendering

Check the following:

• ✅ Blocks render with correct styling
• ✅ Layout matches original page structure (compare to screenshot.png)
• ✅ Images load (or show appropriate placeholders)
• ✅ No raw HTML visible
• ✅ Metadata appears in page source (view source, check <meta> tags)
• ✅ Section styling applied correctly

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Step 4: Compare with Original

Side-by-side comparison:

1. Open ./import-work/screenshot.png alongside browser preview
2. Check that content structure matches
3. Verify blocks decorated correctly
4. Confirm section boundaries align
5. Validate styling consistency

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Troubleshooting

Blocks don't render correctly:

• Check HTML structure matches expected format
• Verify block names match exactly (case-sensitive)
• Review ../content-driven-development/references/html-structure.md for format guidance

Images not loading:

• Verify images folder is in same directory as HTML file
• Check image paths are ./images/... format
• Ensure images were copied correctly from ./import-work/images/

Raw HTML visible:

• Block name might not match existing block in project
• Check browser console for JavaScript errors
• Verify block exists in blocks/ directory

Metadata not in page source:

• Check metadata block is at end of HTML file
• View page source and search for <meta> tags in <head>
• Verify metadata properties match expected format

Dev server not running:

• Start server with aem up
• Check for port conflicts (default 3000)
• Verify you're in correct project directory

Page not found (404):

• Most common cause: Missing --html-folder flag - restart server with aem up --html-folder {dirPath}
• Verify HTML file exists at expected path
• Check documentPath from metadata.json matches URL
• For index files, use / not /index
• Check terminal output confirms "Serving HTML files from folder: {folder}"

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Output

This skill provides:

• ✅ Verified preview that matches original page structure
• ✅ Visual confirmation of correct rendering
• ✅ Validated block decoration
• ✅ Confirmed metadata presence

Import complete when all verification points pass.