ProseMirror doesn't lose styling. All HTML will be normalized as defined in toDOM of each node/mark.

For example all of them will be converted to a basic <strong>:

<p><strong>This is strong</strong></p>
<p><b>And this</b></p>
<p style="font-weight: bold">This as well</p>
<p style="font-weight: bolder">Oh! and this</p>
<p style="font-weight: 500">Cool! Right!?</p>
<p style="font-weight: 999">Up to 999!!!</p>

It's a feature to keep your stored HTML clean. If you want to support more stylings/attributes you have to define it in your schema. You can extend all extension or create your own, but I don't want to change this in the core at the moment.

@philippkuehn can you show us how to preserve custom styles???

how to set style in img tag in tip tap?

ProseMirror doesn't lose styling. All HTML will be normalized as defined in toDOM of each node/mark.

For example all of them will be converted to a basic \<strong\>:

<p><strong>This is strong</strong></p>
<p><b>And this</b></p>
<p style="font-weight: bold">This as well</p>
<p style="font-weight: bolder">Oh! and this</p>
<p style="font-weight: 500">Cool! Right!?</p>
<p style="font-weight: 999">Up to 999!!!</p>

It's a feature to keep your stored HTML clean. If you want to support more stylings/attributes you have to define it in your schema. You can extend all extension or create your own, but I don't want to change this in the core at the moment.

I'm pretty sure users looking to download a rich text editor don't care about clean HTML.

Actually I'm pretty sure no one anywhere cares about clean HTML because formatting literally any well-formed XML document is trivial.

Is this really a feature? 😉

Seems more like an oversight.

Anyways I'm using TipTap for a webmail PWA. Just now realizing it strips out the styling on email replies.

Now I know my solution. :) I have to go through every single element in the library and modify the toDOM \ parseDOM methods for each one.

That's a lot of boilerplate to workaround a "feature"

@piboistudios Tiptap/ProseMirror is a semantic editor and that is a core feature. Feel free to use any other editor that allows any HTML. If you want to continue using Tiptap, it probably makes sense to use global attributes instead of modifying each extension.

it probably makes sense to use global attributes instead of modifying each extension.

That was actually an incredibly helpful response.

@ZolooAnzo @vortechron

See the above. This is a much more viable approach to tackling the problem.