Need support for byob in getReader()

[xinxin8816]

Hi there,

I was wondering if it is possible to run streaming? readablestream

When attempting this I saw error TypeError: readable.getReader is not a function

if this is something you know about, and perhaps have a solution for which you may not have published/pushed yet.

Many thanks.

[gja]

I am not familiar with this. I am willing to accept a PR with these changes. In the meanwhile, have you seen #65