Remove child tag

[Apollo Mok]

I wonder how to remove all child tag from a parent tag with a particular ID.

I tried to use remove_tag and remove_tag_after, but it seems not working in this way.

[kovidgoyal]

Implement prepocess_html in your recipe. There you can do anything you like using the full beautifulsoup api

[Apollo Mok]

I would like to remove the text "<br>" inside content attribute of <meta> tag as below:

<h1 id="article-title" class="sub_ex_article-title">
sometext<br>
<meta content="sometext<br>" name="title">
</h1>


The child is malformed and I can't remove the <br> with prepocess_html,
coz BeautifulSoup doesn't seems to work with this malformed HTML.

Should I use prepocess_raw_html? And is there any sample code available?
How can I remove the whole line of <meta>... name="title"> ?

Thanks