requests for missing favicon.ico cause dash's index route to be served

[ned2]

I just noticed that when a favicon is not wired up, the automatic request for /favicon.ico by the browser results in the dash server returning its index route. This seems to be a consequence of there being a catchall redirecting all URLs that are not matched to the index route.

While probably not too harmful, this seems undesirable. One solution could be to include a default favicon, but perhaps it is also worth establishing whether the catchall behaviour is desirable?

[rmarren1]

I like the idea of having a default favicon, maybe the Dash logo? Or we can just add a default route for favicon.ico in Dash that returns nothing when there is no favicon.ico in the assets directory

[chriddyp]

Yeah, I like the idea of a built-in Dash favicon too.

[T4rk1n]

I think including a default dash favicon.ico is better than a 404.

[chriddyp]

Here are some favicons we could use
dash-favicons.zip

[T4rk1n]

I will add the favicon.ico in the zip as the default favicon.