Custom map not working properly

[aheng-he]

hello，when i use Chinese symbols as the custom map key, doesn't seem to be working

const key3 = limax('你好～', { separator: '-', tone: false, custom: {
    '～': '~',
} })

exception: ni-hao-~
actually: ni-hao

[lovell]

This is probably due to the upstream bug pid/speakingurl#122 and sadly it looks like this dependency is no longer maintained (see also #39 for a similar issue impacted by this).

It might be time to vendor the logic and start patching/fixing the bugs here.