Extract helper for checking headers have content-type=application/json and charset is utf-8
Extract helper for checking headers have content-type=application/json and charset is utf-8

dillia23/code-dot-org,ty-po/code-dot-org,ty-po/code-dot-org,ty-po/code-dot-org,rvarshney/code-dot-org,ty-po/code-dot-org,rvarshney/code-dot-org,dillia23/code-dot-org,pickettd/code-dot-org,pickettd/code-dot-org,rvarshney/code-dot-org,pickettd/code-dot-org,dillia23/code-dot-org,ty-po/code-dot-org,dillia23/code-dot-org,dillia23/code-dot-org,pickettd/code-dot-org,ty-po/code-dot-org,pickettd/code-dot-org,rvarshney/code-dot-org,rvarshney/code-dot-org,rvarshney/code-dot-org,rvarshney/code-dot-org,dillia23/code-dot-org,dillia23/code-dot-org,pickettd/code-dot-org,dillia23/code-dot-org,rvarshney/code-dot-org,pickettd/code-dot-org,ty-po/code-dot-org,ty-po/code-dot-org,pickettd/code-dot-org