Using pipe as a quote produces unexpected output

If you use the pipe character '|' as a quote then it ends up putting pipes in between characters. E.g. [this](http://keyangxiang.com/csvtojson/)
 
```
test,test2,test3
blag,blagh,|blahhh, blah|
```

Outputs this: 

```
[
  {
    "field1": "test",
    "field2": "test2",
    "field3": "test3 blag",
    "field4": "blagh",
    "field5": "|b|l|a|h|h|h|,| |b|l|a|h|"
  }
]
```