Here's a simple reproduction of that difference for `e.navigationType`: Go to https://navigationtype.glitch.me/, open the web console, enable "Persist logs" and click the link in the page. In Firefox it will log `push` and in Chrome `replace`. So the root cause of the different behavior seems to be this polyfill setting a different `navigationType` than Chrome's native implementation.
Bug 1917542 Comment 5 Edit History
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Here's a simple reproduction of that difference for `e.navigationType`: Go to https://hbenl.github.io/test/navigationtype/ (previously https://navigationtype.glitch.me/), open the web console, enable "Persist logs" and click the link in the page. In Firefox it will log `push` and in Chrome `replace`. So the root cause of the different behavior seems to be this polyfill setting a different `navigationType` than Chrome's native implementation.