Fix a divided-by-zero error
Fix a divided-by-zero error

illustrated by this code:
>> read https://lanyardnetwork.com
Floating point exception (core dumped)

With this fix, it becomes:
>> read https://lanyardnetwork.com
** Access error: protocol error: {Server error: HTTP/1.1 503 Service Temporarily Unavailable}

zsx/r3,zsx/r3,zsx/r3,zsx/r3