[gatsby-remark-images] Captions affecting styles of blog posts when using mdx

Description

When using gatsby-plugin-mdx with gatsby-remark-images, some components in the mdx are not styled as expected while others are. This only occurs when showCaptions is set to true and the page with the MDX is accessed directly rather than through Gatsby’s Link component.

Steps to reproduce

Example repo: https://github.com/pavsidhu/gatsby-remark-bug

npm install
npm run build
gatsby serve

Go to localhost:9000, click the Go to post link to go to the blog post. You should see all the paragraphs are red. If you reload the page, some of the paragraphs are no longer styled as per the components prop in MDXProvider. If you remove showCaptions: true in gatsby.config.js, all paragraphs are styled properly.

Environment

System: OS: macOS 10.15.6 CPU: (4) x64 Intel® Core™ i5-4278U CPU @ 2.60GHz Shell: 5.7.1 - /bin/zsh Binaries: Node: 10.16.3 - /usr/local/bin/node Yarn: 1.22.4 - /usr/local/bin/yarn npm: 6.14.8 - /usr/local/bin/npm Languages: Python: 2.7.10 - /usr/local/bin/python Browsers: Edge: 83.0.478.50 Firefox: 81.0.2 Safari: 14.0 npmPackages: gatsby: ^2.24.86 => 2.24.86 gatsby-plugin-mdx: ^1.2.51 => 1.2.51 gatsby-plugin-sharp: ^2.6.43 => 2.6.43 gatsby-remark-images: ^3.3.39 => 3.3.39 gatsby-source-filesystem: ^2.3.36 => 2.4.2 gatsby-transformer-sharp: ^2.5.20 => 2.5.20 npmGlobalPackages: gatsby-cli: 2.12.51 gatsby: 2.23.7

[tondi]

Not stale

[github-actions[bot]]

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