Double console output?

Question

Suddenly when I run my app locally, I get double console output. Does anybody know what might have caused this? The problem exists both when running Thin and Unicorn

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Answer 1

From your example, it shows that duplicates are happening inline, ie.

A
A
B
B
C
C

If instead you are seeing what appears to be two back-to-back duplicate requests, ie:

A
B
C

A
B
C

You should strongly consider @aelor's answer of hunting down a or a similar self-referential url tag. I spent hours trying to figure out why my application was appearing to make two duplicate requests, and after reading @aelor's answer I found

%link{href: "", rel: "shortcut icon"}/

in my code! It was causing every page of my production app to be double rendering!!!! So bad for performance and so annoying!