XML syntax error on line 34: illegal character code U+0008

[minhdanh]

Expected behavior

RSS feed parsed correctly

Actual behavior

gofeed cannot parse RSS feed, with the following error:

XML syntax error on line 34: illegal character code U+0008

Steps to reproduce the behavior

Parse this feed:
http://newsletter.grokking.org/?format=rss

Apparently there's a "strange" character in line 34

[minhdanh]

I can see there's a similar issue which has been fixed a long time ago: #25
But this still happens with the latest version of gofeed (v1.1.3)

[purefun]

I reproduced it.

I also ran into another char: U+0004:

XML syntax error on line 1681: illegal character code U+0004
https://changelog.com/posts/feed

[anzhihe]

I also encountered this problem recently.

version：gofeed v1.1.3，go 1.17

XML syntax error on line 211: illegal character code U+0008

https://chegva.com/feed/

[mmcdole]

I want to be able to parse feeds with illegal characters, so I've opened #206 to see how we should handle this.