Use relative path for thumbnail image url

[bfcs]

Description

scripts/filters/thumbnail_image_url.js

return urlFor(post.permalink + post.thumbnailImage);

Currently the thumbnail image url is post.permalink + post.thumbnailImage,
e.g. https://username.github.io/2021/12/09/postname/imagename.jpg

When use hexo server to preview locally, there is a 404 error to get the thumbnail image. The image won't show.

I recommend using relative path for thumbnail image url.
e.g. /2021/12/09/postname/imagename.jpg

Explanation / motivation

To preview locally, solve the 404 error.

Additional information

• I can implement this feature / improvement

I suggest replace above js code to

return urlFor( new URL(post.permalink).pathname + post.thumbnailImage);

I have tested it and it works ok both locally and Github Page, if you agree, I can make a pull request

[bfcs]

the same issue found in generated search result page
source/_js/search-modal.js

 html += '<a class="link-unstyled" href="' + (post.link || post.permalink) + '">';

[LouisBarranqueiro]

👋 @bfcs, I would like to help you but I need more information. Could you please fill out the template to report a bug (including versions of your module, hexo, system, etc...)?

[bfcs]

Hi, @LouisBarranqueiro ,
The issue is environment independent. When you config the url in _config.yml, the result of post.permalink is https://bfcs.github.io/yyyy/mm/dd/title

so
scripts/filters/thumbnail_image_url.js

return urlFor(post.permalink + post.thumbnailImage);

result is https://bfcs.github.io/yyyy/mm/dd/title/thumbnailImage.png

but currently the site haven't deployed, so get the url will return a 404 error.

I suggest use relative path, /yyyy/mm/dd/title/thumbnailImage.png

[LouisBarranqueiro]

👋 @bfcs, could you please fill out the template to report a bug (including versions of your module, hexo, system, etc...)? I believe this problem is related to the version of Hexo because it works well on my side. Please re-open this issue when you updated the issue with the information needed.