+Here's what I see, taking the web server out of the picture:
+
+ joey@kodama:~>~/html/ikiwiki.cgi 2>/dev/null |hexdump -C|head -1
+ 00000000 43 6f 6e 74 65 6e 74 2d 74 79 70 65 3a 20 74 65 |Content-type: te|
+
+No spurious 0a. With apache:
+
+ 0100 75 6e 6b 65 64 0d 0a 43 6f 6e 74 65 6e 74 2d 54 unked..C ontent-T
+
+Here the 0d 0a is a CRLF, and note that it's output by the web server, not
+ikiwiki. It's perfectly valid, while a lone 0a, just a linefeed, is not valid
+HTTP. Conclusion, this was your web server; it's not uncommon for hacky
+little web servers to not use proper CRLF's, and it works _some_ of the time,
+depending on how strict the browser is.
+
+I'm calling this [[bugs/done]] --[[Joey]]