Could we have this merged? Without it, browsing docs locally is PITA ;)

@Sija I'm using Chrome Version 56.0.2924.87 (64-bit) on macOS 10.12.3, and can't repro the sessionStorage error.

$ git rev-parse HEAD
13d566b9cdea62b2077aa3af06483237524fadf6
$ make clean doc
Using /usr/local/bin/llvm-config-3.6 [version=3.6.2]
rm -rf .build
rm -rf ./doc
rm -rf src/llvm/ext/llvm_ext.o
rm -rf src/ext/sigfault.o src/ext/libcrystal.a
./bin/crystal doc src/docs_main.cr
$ open doc/index.html

Do you have to perform any specific action for the error to trigger?

@matiasgarciaisaia see https://www.chromium.org/for-testers/bug-reporting-guidelines/uncaught-securityerror-failed-to-read-the-localstorage-property-from-window-access-is-denied-for-this-document

I could confirm both the bug and the solution - thanks for that! 👍