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Deprecate the font HTML tag

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Rationale:
MSC4077 allows to deprecate HTML tags
that are deprecated in the WHATWG standard,
if they can be replaced by tags with the same feature.

`font` is deprecated and can be replaced by `span`
with the `data-mx-bg-color` and `data-mx-color` attributes.

Signed-off-by: Kévin Commaille <zecakeh@tedomum.fr>
This commit is contained in:
Kévin Commaille 2024-03-05 13:07:28 +01:00
parent 4e1b364015
commit e8a8548cbc
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1 changed files with 4 additions and 5 deletions
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9
content/client-server-api/modules/instant_messaging.md
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@ -43,10 +43,10 @@ were limited to `m.text`, `m.emote`, `m.notice`, and
Clients should limit the HTML they render to avoid Cross-Site Scripting, Clients should limit the HTML they render to avoid Cross-Site Scripting,
HTML injection, and similar attacks. The strongly suggested set of HTML HTML injection, and similar attacks. The strongly suggested set of HTML
tags to permit, denying the use and rendering of anything else, is: tags to permit, denying the use and rendering of anything else, is:
`font`, `del`, `h1`, `h2`, `h3`, `h4`, `h5`, `h6`, `blockquote`, `p`, `del`, `h1`, `h2`, `h3`, `h4`, `h5`, `h6`, `blockquote`, `p`, `a`, `ul`,
`a`, `ul`, `ol`, `sup`, `sub`, `li`, `b`, `i`, `u`, `strong`, `em`, `ol`, `sup`, `sub`, `li`, `b`, `i`, `u`, `strong`, `em`, `s`, `code`,
`s`, `code`, `hr`, `br`, `div`, `table`, `thead`, `tbody`, `tr`, `hr`, `br`, `div`, `table`, `thead`, `tbody`, `tr`, `th`, `td`,
`th`, `td`, `caption`, `pre`, `span`, `img`, `details`, `summary`. `caption`, `pre`, `span`, `img`, `details`, `summary`.
{{% boxes/note %}} {{% boxes/note %}}
{{% added-in v="1.10" %}} {{% added-in v="1.10" %}}
@ -65,7 +65,6 @@ the tag.
| Tag | Permitted Attributes | | Tag | Permitted Attributes |
|--------|--------------------------------------------------------------------------------------------------------------------------------------------| |--------|--------------------------------------------------------------------------------------------------------------------------------------------|
| `font` | `data-mx-bg-color`, `data-mx-color`, `color` |
| `span` | `data-mx-bg-color`, `data-mx-color`, `data-mx-spoiler` (see [spoiler messages](#spoiler-messages)) | | `span` | `data-mx-bg-color`, `data-mx-color`, `data-mx-spoiler` (see [spoiler messages](#spoiler-messages)) |
| `a` | `name`, `target`, `href` (provided the value is not relative and has a scheme matching one of: `https`, `http`, `ftp`, `mailto`, `magnet`) | | `a` | `name`, `target`, `href` (provided the value is not relative and has a scheme matching one of: `https`, `http`, `ftp`, `mailto`, `magnet`) |
| `img` | `width`, `height`, `alt`, `title`, `src` (provided it is a [Matrix Content (`mxc://`) URI](#matrix-content-mxc-uris)) | | `img` | `width`, `height`, `alt`, `title`, `src` (provided it is a [Matrix Content (`mxc://`) URI](#matrix-content-mxc-uris)) |