A decade-plus ago, this was common in single-page apps. It was the only way to do it before the history API existed, and enough people were doing it that Google was pushing a fragment-url thing [0] that allowed server-side rendering. You'd make such links in a certain way, then the crawler would hope a simple modification of the URL could be rendered by the server and load that.
(Per a comment on that source, it's not been a thing since 2015, since the google crawler can now handle javascript)
A decade-plus ago, this was common in single-page apps. It was the only way to do it before the history API existed, and enough people were doing it that Google was pushing a fragment-url thing [0] that allowed server-side rendering. You'd make such links in a certain way, then the crawler would hope a simple modification of the URL could be rendered by the server and load that.
(Per a comment on that source, it's not been a thing since 2015, since the google crawler can now handle javascript)
[0] https://stackoverflow.com/questions/6001433/does-google-igno...