attributesWhitelist does not handle class attribute in img tags

[spiff123]

Describe the bug

This configuration:

attributesWhitelist: {
'img': 'class|style|data-.+'
},

Does not keep the class attribute in the img tag.

To Reproduce

1. add a image
2. goto source editor
3. add class="myclass" to the img tag
4. save

Expected behavior
It would be nice to have the class tag keept at the img tag even after save.
Use Case: PreviewImage in a template should be visible in editor and not visible in saved output.

Version: 2.44.12

• Browser firefox

[JiHong88]

Classes must start with se- or __se__.
In the next version, the 'allowedClassNames' option will be added.

[spiff123]

Thank you!

[JiHong88]

The 2.45.0 version has been updated.
Thank you.