</xs:element>
<xs:element name="contentProxy">
<xs:complexType>
- <xs:attribute name="server" use="required" type="xs:string"/>
+ <xs:attribute name="server" type="xs:string"/>
+ <xs:attribute name="tmp_file" type="xs:string"/>
</xs:complexType>
</xs:element>
<xs:attributeGroup name="filter_zoom">