Firefox doesn't read DTDs?
I have an XML file (diploma.xml) that looks like this:
<?xml version="1.0" standalone="no" ?>
<!DOCTYPE Diploma SYSTEM "diploma.dtd">
<Diploma>
&students;
&Registrations;
&Courses;
</Diploma>
And the DTD looks like this:
<!ENTITY students SYSTEM "students.xml">
<!ENTITY Registrations SYSTEM "registrations.xml">
<!ENTITY Courses SYSTEM "courses.xml">
When I try to open diploma.xml
in IE8 it includes all other XML files correctly, but in Firefox 3.5 I get a syntax error about &students;
not defined. Why is this?
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1 answer
Firefox doesn't read external objects at all (except for a few internal special cases). This is partly because it could flood sites like W3 with DTD requests, partly because it is another source of potential cross-site scripting, but mostly out of laziness as few people use Firefox as a raw XML viewers and some of them people use old school DTDs more.
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