While using the UrlEmbedFilter in the url_embed module, a warning is triggered, indicating an attempt to read the property "html" on a null object. This warning is found in the process method of the UrlEmbedFilter plugin.
url_embed filter to the text format.The result is:
Warning: Attempt to read property "html" on null in Drupal\url_embed\Plugin\Filter\UrlEmbedFilter->process() (line 78 of modules/contrib/url_embed/src/Plugin/Filter/UrlEmbedFilter.php).
Since the warning mentions an attempt to read the property "html" on a null object in the UrlEmbedFilter plugin, we need to check if the object is properly initialized before accessing its properties.
Postponed: needs info
2.0
Code
Are you sure you are actually using version 2.0.0-alpha1? Because that check already exists there?