| PASS Create headers giving an array having one string as init argument | |
| PASS Create headers giving an array having three strings as init argument | |
| PASS Create headers giving bad header name as init argument | |
| PASS Create headers giving bad header value as init argument | |
| PASS Check headers get with an invalid name invalidĀ | |
| PASS Check headers get with an invalid name [object Object] | |
| PASS Check headers delete with an invalid name invalidĀ | |
| PASS Check headers delete with an invalid name [object Object] | |
| PASS Check headers has with an invalid name invalidĀ | |
| PASS Check headers has with an invalid name [object Object] | |
| PASS Check headers set with an invalid name invalidĀ | |
| PASS Check headers set with an invalid name [object Object] | |
| PASS Check headers set with an invalid value invalidĀ | |
| PASS Check headers append with an invalid name invalidĀ | |
| PASS Check headers append with an invalid name [object Object] | |
| PASS Check headers append with an invalid value invalidĀ | |
| PASS Headers forEach throws if argument is not callable | |
| PASS Headers forEach loop should stop if callback is throwing exception | |