OK, here’s one for the WTF file. Working on an electronic document library application that is fed from some automated processes that create and inject PDF files.
Up until recently, all is working as expected, until users started complaining that a certain class of files won’t display.
After much digging and gnashing of teeth, a colleague managed to isolate the problem which turns out to be the combination of the following factors:
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Internet Explorer 7
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HTTPS
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Adobe PDF Plugin
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PDF files smaller than 8k
What? Files smaller than 8k? Yes.
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Bigger files work fine.
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Small files work fine over HTTP.
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Small files over HTTPS with Firefox work.
Go figure.