Is there already a way to place link preview images for when we export in html? In case someone enters the url of the game on some platform like facebook for example there appears a preview image
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Yes. You just need to add some meta tags into the header of your index.html.
<meta property="og:image" content="your_image_url"> <meta property="og:title" content="your_link_title">
Then, place the image that you want in the main folder and link to it in the meta tags. Be sure to edit the tag contents to get the correct title and description like below.