Test for bug 13029: Permit NPAPI plug-ins to see HTTP response headers.

Expected result below is two HTTP response extracts, one for the initial stream specified in the "src" attribute, the other for an NPN_GetURLNotify request. Each block should contain the URL; the status line, which should say "HTTP 200 OK"; and the MIME-type, which should say "Content-Type: text/plain".

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http://[varies, not being tested]/plugins/resources/load-me-1.txt
HTTP 200 OK
Content-Type: text/plain

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http://[varies, not being tested]/plugins/resources/load-me-2.txt
HTTP 200 OK
Content-Type: text/plain