No plugins available to add to blog post page in frontend editing form using USE_PLACEHOLDER = True

[sq9mev]

Description

No plugins available to add to blog post page in frontend editing form using USE_PLACEHOLDER = True

 Steps to reproduce

• create post and save it
• open right menu containing page structure
• use "+" button to add some plugin in "Media" or "Post_Content" placeholder
• no plugins is available to add while i'd expect to have some plugins available here
• however when some plugin is copied to clipboard

Versions

• djangocms_blog-1.1.1
• Django-2.2.9
• django_cms-3.7.2
• Python 3.8.2

Expected behaviour

I'd expect at least some plugins are available to add.

Actual behaviour

No plugins available to add.

Additional information

[sq9mev]

Well, it's not djangocms_blog fault… in my templates i use custom tag which replaces spaces with non breaking spaces after single letters (in polish language we do not leave a single letter at the end of the line).

Seems like "sierotki" custom tag should be used in more specific context, not covering whole content block in my project's base.html.

Closing as it's not a bug.

[yakky]

@sq9mev thanks for reporting the root cause of the issue

[sq9mev]

Just for posterity: there were two problems with "sierotki" templatetag (https://room-303.com/blog/2009/08/12/python-utop-sierotki-w-zupie/):

1. lxml parser wraps output with html > body
2. script tags were processed as well causing strange problems

Here's the solution: https://gist.github.com/sq9mev/dbd9b2cdcb59c0828045eea46a05389f