Diagram is empty after conversion from drawio

[snazare]

1. Import a page containing a drawio diagram from confluence
2. Find the imported page in XWiki
3. Click on convert to diagram

Expected result: the drawio diagram is converted into an XWiki diagram and can be edited

Actual result: the drawio diagram is converted, but the page is empty

diagram-drawio.mp4

Environment: XWiki 14.4.6, cloud, Confluence Migrator 1.0.8, Pro Macros 1.6

[raphj]

For the record, it seems to be caused by the missing .drawio extension in the attachments. I copied this page, added the extensions and it worked. So something is not happy when the .drawio extension is not there.

The drawio macro itself seems to not care (after a grep on .drawio), and the diagram importer seem to not care neither since it runs regexes on the content instead of relying on extensions, at least in this file: https://github.com/xwikisas/application-diagram/blob/master/application-diagram-api/src/main/java/com/xwiki/diagram/internal/DiagramImporter.java (and I didn't find anything with grep on this repository neither)

[raphj]

The drawio bridge macro does not require any .drawio extension anymore. Thanks @oanalavinia for the investigation.