| PASS slice start is negative, relativeStart will be max((size + start), 0) | |
| PASS slice start is greater than blob size, relativeStart will be min(start, size) | |
| PASS slice end is negative, relativeEnd will be max((size + end), 0) | |
| PASS slice end is greater than blob size, relativeEnd will be min(end, size) | |