Thêm ảnh đại diện khi chia sẻ lên Facebook
Mở template thread_view, tìm code sau:
	
	
	
		
Thay thế thành:
	
	
	
		
Here's how to create og:image tag by finding the file in the post, and automatically selecting the largest image file size.
			
			Mở template thread_view, tìm code sau:
		XML:
	
	<xf:macro template="metadata_macros" name="metadata"
    arg-description="{$fpSnippet}"
    arg-shareUrl="{{ link('canonical:threads', $thread) }}"
    arg-canonicalUrl="{{ link('canonical:threads', $thread, {'page': $page}) }}" />
	Thay thế thành:
		XML:
	
	<xf:set var="$og_image" value="0" />
<xf:set var="$file_size" value="0" />
<xf:foreach loop="$thread.FirstPost.Attachments" value="$attach">  
    <xf:if is="$attach.thumbnail_url && ($attach.file_size > $file_size)">
        <xf:set var="$og_image" value="{{ link('canonical:attachments', $attach) }}" />
        <xf:set var="$file_size" value="{$attach.file_size}" />
    </xf:if>
</xf:foreach>
<xf:if is="$og_image">
    <xf:macro template="metadata_macros" name="metadata"
        arg-imageUrl="{$og_image}"
        arg-description="{$fpSnippet}"
        arg-shareUrl="{{ link('canonical:threads', $thread) }}"
        arg-canonicalUrl="{{ link('canonical:threads', $thread, {'page': $page}) }}" />
<xf:else/>
<xf:macro template="metadata_macros" name="metadata"
    arg-description="{$fpSnippet}"
    arg-shareUrl="{{ link('canonical:threads', $thread) }}"
    arg-canonicalUrl="{{ link('canonical:threads', $thread, {'page': $page}) }}" />
</xf:if>
	Here's how to create og:image tag by finding the file in the post, and automatically selecting the largest image file size.