Pasting anchors give strange behavior

[fredck]

I have copied the contents of the following page in the online demo:
https://aws.amazon.com/aup/

The headers inside the text are anchor links (<a name="...">).

When pasting it inside the online demo, some strange things happen:

• The titles get styled like a link. They shouldn't because these are not links but anchors.
• Still the link balloon doesn't show up :/
• Clicking on these links gives the impression that we're constantly breaking words in parts. In fact, the spell checking underline goes a bit crazy with it.
• The above can be also noticed when hovering with the caret inside the link. It looks like broken at the caret position.

The expected result is that such anchors will not be pasted, just the plain text of the headers. Unless the still not existing anchor feature is available, ofc.

[Reinmar]

This is what we get from the clipboard:

 <meta charset='utf-8'><div class="lead-copy" style="box-sizing: border-box; color: rgb(51, 51, 51); font-family: HelveticaNeue, Helvetica, Helvetica, Arial, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><div class="lead" style="box-sizing: border-box; font-size: 1.28em; font-weight: 200; line-height: 1.6em; margin-bottom: 30px; font-family: HelveticaNeueLight, Helvetica, Helvetica, Arial, sans-serif;"><p style="box-sizing: border-box; margin: 0px 0px 0.8em;">use of the Services.<br style="box-sizing: border-box;"></p></div></div><div class="content parsys" style="box-sizing: border-box; color: rgb(51, 51, 51); font-family: HelveticaNeue, Helvetica, Helvetica, Arial, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><div class="title section row" style="box-sizing: border-box; width: auto; max-width: none; margin: 0px -10px 15px; min-width: 0px;"><div class="twelve columns" style="box-sizing: border-box; float: left; min-height: 2px; padding: 0px 10px; position: relative; width: 879px;"><h3 id="No_Illegal,_Harmful,_or_Offensive_Use_or_Content" style="box-sizing: border-box; margin: 0px; line-height: 1.3em; color: rgb(31, 61, 92); text-rendering: optimizeLegibility; font-family: HelveticaNeue, Helvetica, Helvetica, Arial, sans-serif; font-size: 1.4em; font-weight: 300;"><a name="No_Illegal,_Harmful,_or_Offensive_Use_or_Content" style="box-sizing: border-box; color: inherit; text-decoration: none; cursor: pointer;">No Illegal, Harmful, or Offensive Use or Content</a></h3></div></div><div class="text section" style="box-sizing: border-box; margin-bottom: 25px; font-family: HelveticaNeue, Helvetica, Helvetica, Arial, sans-serif !important;"><p style="box-sizing: border-box; margin: 0px 0px 0.8em;">You ma</p></div></div>

A soup, but digestive.

This is what we get initially in the editable (first bug):

And this is even worse – after clicking in the middle of the text the filler gets inserted (second bug):

Both bugs are pretty bad.

[Reinmar]

I think that the second issue is a result of the first issue because the same thing doesn't happen when the link is properly converted from the model. Still, we should understand why all this happens.

[Reinmar]

The second issue I described may be the cause of #502.

[Reinmar]

The supposed fix for #502 doesn't help for this issue and since we have just one attribute element here I suppose that #502 is completely unrelated.

[Reinmar]

The fix for link converter is in https://github.com/ckeditor/ckeditor5-link/issues/139. Now checking why the link gets split (the link isn't split of course if it gets converted correctly).

[Reinmar]

I reported https://github.com/ckeditor/ckeditor5-engine/issues/1013 and I don't think that it makes sense to actually think what broke there because the issue is caused by the value of the attribute being undefined. If it's any other kind of falsy value, everything works fine.

[oleq]

https://github.com/ckeditor/ckeditor5-link/issues/139 resolved this issue.