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In order to focus only on HTML validation it would be useful to have an option to avoid (disable) any kind of CSS validation, even for inline and internal CSS, or, which seems suitable in case of an H…
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#### Expected behaviour
Given nested list as below
```markdown
- Green
1. Lime
2. Mint
- Red
- Garnet
- Crimson
- Blue
```
Should be parsed into
```html
Green
…
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The following html triggers a bug in the tokenizer:
`&abc`
You'd expect this to cause a validation error. Instead it triggers a bug in the tokenizer.
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### Is there an existing issue for this?
- [X] I have searched the existing issues
### Describe the bug
the NU HTML Checker (https://validator.w3.org) mark syntax errors on html attributes rendered…
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Hello, please excuse my poor English. Last year I asked for the same problem. I have my homepage: https://eberhard-koch.de/. When I'm using the Nu Html Checker almost everything is fine:
![Bildschirm…
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The [html spec](https://html.spec.whatwg.org/multipage/semantics.html#attr-meta-http-equiv-content-security-policy) says that the `content` of an `` tag should be a [`serialized-policy`](https://w3c.g…
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_(links updated to use beta.w3.org)_
I checked with the following three pages:
https://validator.w3.org/nu/?doc=https%3A%2F%2Fbeta.w3.org%2F
https://validator.w3.org/nu/?doc=https%3A%2F%2Fbet…
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This is a proposed replacement to jtidy
Using the Nu Html Checker at https://github.com/validator/validator/releases
I have added the libraries vnu.jar and sax.jar to the project
I have also bo…
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When WET validation happens there is a hidden element inserted in the page that uses the same div id the error occurred on.
### Impact:
When elements are not well formed, assistive technologies m…