Command output is truncated when piped

[teogeos]

Hello,
When piping remap-istanbul in the command line, if the output reaches a certain size it is truncated.

If I write remap-istanbul > remaped-coverage.json in a terminal, remaped-coverage.json contains the full expected json.

But if I use the pipe operator, like this remap-istanbul | cat > remaped-coverage.json, then remaped-coverage.json only contains the first 65536 bytes of json.

This node-sass issue seems related: sass/node-sass#1823