Just to add to this – there is also the series of warnings and errors returned from the validator regarding different code plugins. - I am using OJS 3.3.0.10
Warning : The type
attribute is unnecessary for JavaScript resources.
Warning : The navigation
role is unnecessary for element nav
.
Warning : Attribute with the local name xmlns:i
is not serializable as XML 1.0.
Warning : Attribute with the local name xmlns:dc
is not serializable as XML 1.0.
Warning : Attribute with the local name xmlns:cc
is not serializable as XML 1.0.
Warning : Attribute with the local name xmlns:rdf
is not serializable as XML 1.0.
Warning : Attribute with the local name xmlns:svg
is not serializable as XML 1.0.
Warning : Attribute with the local name xmlns:sodipodi
is not serializable as XML 1.0.
Warning : Attribute with the local name xmlns:inkscape
is not serializable as XML 1.0.
Warning : Attribute sodipodi:docname
is not serializable as XML 1.0.
Warning : Attribute inkscape:version
is not serializable as XML 1.0.
Warning : Element name rdf:rdf
cannot be represented as XML 1.0.
Warning : Attribute rdf:about
is not serializable as XML 1.0.
Warning : Element name cc:work
cannot be represented as XML 1.0.
Warning : Element name dc:format
cannot be represented as XML 1.0.
Warning : Attribute rdf:resource
is not serializable as XML 1.0.
Warning : Element name dc:type
cannot be represented as XML 1.0.
Warning : Attribute inkscape:pageopacity
is not serializable as XML 1.0.
Warning : Attribute inkscape:pageshadow
is not serializable as XML 1.0.
Warning : Attribute inkscape:window-width
is not serializable as XML 1.0.
Warning : Attribute inkscape:window-height
is not serializable as XML 1.0.
Warning : Attribute inkscape:zoom
is not serializable as XML 1.0.
Warning : Attribute inkscape:cx
is not serializable as XML 1.0.
Warning : Attribute inkscape:cy
is not serializable as XML 1.0.
Warning : Attribute inkscape:window-x
is not serializable as XML 1.0.
Warning : Attribute inkscape:window-y
is not serializable as XML 1.0.
Warning : Attribute inkscape:window-maximized
is not serializable as XML 1.0.
Warning : Attribute inkscape:current-layer
is not serializable as XML 1.0.
Warning : Element name sodipodi:namedview
cannot be represented as XML 1.0.
Warning : Attribute i:extraneous
is not serializable as XML 1.0.
Warning : Attribute inkscape:connector-curvature
is not serializable as XML 1.0.
Error : The scheme
attribute on the meta
element is obsolete. Use only one scheme per field, or make the scheme declaration part of the value.
Error : When the attribute xml:lang
in no namespace is specified, the element must also have the attribute lang
present with the same value.
Error : Saw <?
. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)
Error : Attribute xmlns:i
not allowed here.
Error : Attribute xmlns:dc
not allowed here.
Error : Attribute xmlns:cc
not allowed here.
Error : Attribute xmlns:rdf
not allowed here.
Error : Attribute xmlns:sodipodi
not allowed here.
Error : Attribute xmlns:inkscape
not allowed here.
Error : Attribute sodipodi:docname
not allowed on element svg
at this point.
Error : Attribute inkscape:version
not allowed on element svg
at this point.
Error : Element rdf:rdf
not allowed as child of element metadata
in this context. (Suppressing further errors from this subtree.)
Error : Element sodipodi:namedview
not allowed as child of element svg
in this context. (Suppressing further errors from this subtree.)
Error : Attribute i:extraneous
not allowed on element g
at this point.
Error : Attribute inkscape:connector-curvature
not allowed on element path
at this point.
Error : Element style
not allowed as child of element div
in this context. (Suppressing further errors from this subtree.)