Option to disable default image functionality

[seeM]

Apologies if I'm missing something, but there doesn't seem to be a way to disable Quarto from setting the image of a post to the first image. I was thinking of something like setting image: null in the post metadata.

[cderv]

If you are referring to social preview, same as your question in Discussion, you can configure this in some settings https://quarto.org/docs/reference/projects/websites.html#social

If you are referring to listing feature, we have some information at https://quarto.org/docs/websites/website-listings.html#listing-fields to change the image

Or do you want no image at all ?

[seeM]

Yes, I would like no image at all

[cderv]

Yes, I would like no image at all

No image at all where ? in a Listing page ? In social preview ?

[seeM]

No image in the listing and social preview.

…

On Thu, 20 Apr 2023 at 13:31, Christophe Dervieux ***@***.***> wrote: Yes, I would like no image at all No image at all where ? in a Listing page ? In social preview ? — Reply to this email directly, view it on GitHub <#5251 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAEISACFD5ZPTHOQPXRHMLDXCENCHANCNFSM6AAAAAAXFKEQVM> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[dragonstyle]

Right now I don't think there is a way to disable this - the auto discovery is always finding an image.

We have a couple of options:

• We could relax the auto-discovery (as it was previous versions) so it less frequently finds preview images (e.g. the older versions required specific file names, class names, or document metadata to count as preview images). This old was was changed to make it easier to use computational images as preview images, so I'm loathe to go back.
• We could support image: false in the front matter as a way to disable preview image discovery. I'm in favor of this.

[seeM]

Thanks @dragonstyle! I agree on the image: false option. I don't think it's worth rolling back the auto-discovery feature just for this option

[nsfinkelstein]

Using the image: false option has produced the following error for me, under Quarto version 1.4.549

ERROR: TypeError: path.startsWith is not a function

Stack trace:
    at listingItemHref (file:///opt/quarto/bin/quarto.js:89130:37)
    at listItemFromFile (file:///opt/quarto/bin/quarto.js:88951:71)
    at eventLoopTick (ext:core/01_core.js:183:11)
    at async readContents (file:///opt/quarto/bin/quarto.js:88780:34)
    at async readListings (file:///opt/quarto/bin/quarto.js:88416:36)
    at async listingHtmlDependencies (file:///opt/quarto/bin/quarto.js:90080:45)
    at async Object.formatExtras (file:///opt/quarto/bin/quarto.js:90400:45)
    at async runPandoc (file:///opt/quarto/bin/quarto.js:68741:63)
    at async renderPandoc (file:///opt/quarto/bin/quarto.js:70041:26)
    at async Object.onRender (file:///opt/quarto/bin/quarto.js:77261:36)

I was able to disable images in the listing by setting image-height: "0" in the listing options.

[cscheid]

@nsfinkelstein We need a reproducible document to test.

[nsfinkelstein]

Thanks for the response. I am happy with the approach of setting image-height: "0" in the listing options, so I don't mean to ask that the issue be reopened. I just wanted to share that approach with anyone else who happens upon the same error and github issues I did.

[dragonstyle]

I can reproduce this (image: false was initially intended to affect editing image metadata on the page, but it should work in this context too). Here's that issue:

#8715