Yang Mao

DuplicatingChannels.hs doesnt work

3

It only produce `First read: Hi!` The Glorious Glasgow Haskell Compilation System, version 8.6.5 Linux iParadox.dev 5.4.15-arch1-1 #1 SMP PREEMPT Sun, 26 Jan 2020 09:48:50 +0000 x86_64 GNU/Linux

开启脚本后，会导致在部分富文本网页（如地图，多图片）操作时会出现，左键按下后不会松开，始终粘滞，必须要刷新网页才能松开的情况。 **已知出现bug网页如下** - [Openlayer](http://openlayers.org/en/latest/examples/overviewmap-custom.html)地图区 - [哔站播放页面](bilibili.tv) >Name: Firefox >Version: 50.1.0 >Build ID: 20161214021728 >User Agent: *** >OS: Linux 4.9.6-1-MANJARO >Multiprocess Windows: 0/1 (Disabled by add-ons) >Safe Mode: false

In section 6.5 of documentation it says module trailer is optional while in fact we have a mandatory error function to define in module trailer isn't it? E.g. `happyError` on...