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Wednesday, February 18, 2015

SharePoint ULS Error UserAgent not available, file operations may not be optimized

ULS Error (repeating) in SharePoint 2013 shows:

UserAgent not available, file operations may not be optimized

A quick shout out to Richard Leeman for the fix - it means that the Blob Cache has to be cleared. Using PowerShell:

$webApp = Get-SPWebApplication "http://<Site>:<Port if needed>" 
[Microsoft.SharePoint.Publishing.PublishingCache]::FlushBlobCache($webApp)

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