The shadow DOM spec has made it so that you are allowed to actually manipulate the shadow DOM of your own custom elements. Blueprints and Views¶ A view function is the code you write to respond to requests to your application. All you see in the DOM is the element, but it contains a series of buttons and other controls inside its shadow DOM. bpcomponent1: An application component from flask import Blueprint. Think for example of a element, with the default browser controls exposed. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 from flask import ( Blueprint, request, rendertemplatestring ) bp Blueprint( a1, name. To inject new variables/functions into all templates from flask script. Note that the shadow DOM is not a new thing by any means - browsers have used it for a long time to encapsulate the inner structure of an element. The difference is that none of the code inside a shadow DOM can affect anything outside it, allowing for handy encapsulation. You can affect the nodes in the shadow DOM in exactly the same way as non-shadow nodes - for example appending children or setting attributes, styling individual nodes using, or adding style to the entire shadow DOM tree inside a element.
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