Sitecore Page Preview not working with multi site setup

I have a Sitecore project with multiple websites where the Preview option is not working like expected. When i'm on an item with a presentation and click on Preview in the presentation tab i get the following error:

The requested document was not found ->

Requested URL: /sitecore/content/<WebnameXXX>/home 
User Name: default\Anonymous 
Site Name: website 
If the page you are trying to display exists, please check that an appropriate prefix    has been added to the IgnoreUrlPrefixes setting in the web.c开发者_JS百科onfig. 

What can I do to solve this issue? I'm currently using 2 website nodes in the web.config file.

Web.config site nodes:

<site name="ggxxx_exxx1" hostName="ggxxx1.exxx.nl" virtualFolder="/" physicalFolder="/" rootPath="/sitecore/content/gxxx1_nl" language="nl-NL" startItem="/home" database="web" domain="extranet" allowDebug="false" cacheHtml="true" htmlCacheSize="10MB" registryCacheSize="0" viewStateCacheSize="0" xslCacheSize="5MB" filteredItemsCacheSize="2MB" enablePreview="true" enableWebEdit="true" enableAnalytics="true" enableDebugger="false" disableClientData="false" />

<site name="ggxxx_exxx2" hostName="ggxxx2.exxx.nl" virtualFolder="/" physicalFolder="/" rootPath="/sitecore/content/ggxxx2_nl" language="nl-NL" startItem="/home" database="web" domain="extranet" allowDebug="false" cacheHtml="true" htmlCacheSize="10MB" registryCacheSize="0" viewStateCacheSize="0" xslCacheSize="5MB" filteredItemsCacheSize="2MB" enablePreview="true" enableWebEdit="true" enableAnalytics="true" enableDebugger="false" disableClientData="false" />

Looks like your site definition is slightly off

/sitecore/content --//--- home

(double slash)