Unable to use case sensitive attributes and allow empty string attribute's value ( ="" )

[dulmi-j]

Concern 01

Is there any possibility to allow case sensitive attributes with this package along with a config setting.

I have HTML like below and it removes case sensitive attributes even I add the attribute's named categoryType under allowed_attributes for div tag.

Ex:

<div class="custom" categoryType="books"></div>

Sanitizer is returning for above HTML as below.

<div class="custom"></div>

I have debug your library and found it identify the attribute as "categorytype" (all letters are in lower case). But could we have case sensitive attributes ?

Concern 02

Sanitizer package is removing empty strings value of a attribute like below. (="")

Ex:

<a rel="" href="https://github.com/tgalopin/html-sanitizer/">HTML Sanitizer</a>

Sanitizer returns

<a rel href="https://github.com/tgalopin/html-sanitizer/">HTML Sanitizer</a>

But could we have empty string as attribute value. May be we can allow this feature as well with a config setting.
<a rel="" href="https://github.com/tgalopin/html-sanitizer/">HTML Sanitizer</a>

[tgalopin]

But could we have case sensitive attributes ?

HTML5 attributes should always be lowercase AFAIK: https://stackoverflow.com/questions/25033268/are-html5-data-attributes-case-insensitive

Sanitizer package is removing empty strings value of a attribute like below. (="")

What's your use case for that? AFAIK, empty values are always for boolean values, which should be fine with no value.

[keywan-ghadami-oxid]

@dulmi-j I think this should be closed, or the reason should be explained better.