Comma change
Comma change

The comma there seems to unnecessarily break the sentence.

Also, in that section, this sentence is just confusing in this context:

"If your app provides an route:favorites, the framework will invoke it before rendering the template. Yes, this is a bit repetitive."

Huh? Did I miss something on how something like a "route:favorites" is declared. If I understood that, I might understand what is repetitive.
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