[WIP] Improve testing robustness#4

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stanciuadrian wants to merge 2 commits intolluchs:masterfrom

stanciuadrian:ImproveTestingRobustness

Commits on Oct 31, 2018

Fix HTTP headers verification
stanciuadrian
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Commits on Nov 10, 2018

fix case when comparing with lowercase header
stanciuadrian
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