In pr review, the fallback images are not shown

[yin1999]

What page(s) did you find the problem on?

Pr review:

https://pr7646.content.dev.mdn.mozit.cloud/zh-CN/docs/Web/Guide/Audio_and_video_delivery/Adding_captions_and_subtitles_to_HTML5_video

Specific page section or heading?

案例

What is the problem?

The image is not shown there, because it is a fallback (reference to mdn/content, but this file is not in built artifact)

What did you expect to see?

While we can tell if a referenced image exists based on its border shape, it would be better to include the actual image.

Solution

copy files from mdn/content

Because we can got all of those changed markdown or html file by {{env.GIT_DIFF_CONTENT}}, so whether it's a good idea to copy all non html/markdown file with the same dir in mdn/content.

In this way, we don't need to redesign the build logic in mdn/yari. But the built artifact may contain some not-used files.

redesign mdn/yari build logic

We should copy those referenced fallback images when build a l10n document. This may be a little difficult. But this will help with local content build (the built out files can be served directlly).

/cc @SphinxKnight, @schalkneethling, @mdn/core-dev

[yin1999]

This should be fixed by mdn/yari#7917.