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Issue

If the rewriteUrl function is used, then a debug log is generated:

This issue is more of a personal preference, but this behaviour creates a lot of extra log entries (1 per every request), which in my mind are not interesting.

My proposal is that the logging be removed. If the developer is interested in knowing when the URL is changed, then they can write their own log in the rewriteUrl function that they provide. Perhaps then we need to bind the rewriteUrl function to the fastify instance, or provide it as a parameter to they can access the logger easily.

Small bonus is that in this way we can also eliminate the URL equality check.