I’m trying to make my Dash app to load with a some selected parameters using the URL query string.
So I have a callback which has this Input:
[Input('url', 'pathname')], so it will do some output depending on the url.
However, dcc.Location seems to not correspond with the actual browser URL (
window.location.href) since this callback gets empty string when is loaded for first time in the app, no matter what is written in the browser address bar.
It does work if I change the url using another dash component which modifies the url, pathname (i.e. this Output: Output(‘url’, ‘pathname’).
Moreover, if I load a url with something already written is query string, let’s say: mydomain.com/app?foo and then I activate the callback which writes ‘foo’ to the pathname, the actual result in the address will be: mydomain.com/app?foofoo, but the receiving function callback for
[Input('url', 'pathname')] gets only one foo; instead of two as the user is seeing.