rails/http: monkey-patch with prepend instead of method chaining #1162
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Fixes #1161 (missing prepend instrumentation leads to stack level too deep
error)
Since we don't care about Ruby 1.9 support, we can safely rely on
prepend
tomonkey-patch methods safely. This is more robust because nobody will overwrite
our implementation (unless they forget to call
super
) and we will also respectother libraries that monkey-patch
HTTP::Client#perform
.