Add support for deferred loading of bokehjs' bundles #13547
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This is an experiment in adding support for deferred bundles. Bundles are resolved the same as previously, but instead of including them via resource management, they are included either by name or respective URL in document's serialized representation and resolved by bokehjs when needed. This work for both standalone and server embedding. Additional bundles can be requested with subsequent document patches.
In the example below we can see that only
bokeh.js
was loaded with the initial HTML page, but we can use widgets and math text:Tentatively including in 3.4 milestone, but it may take some time before this is fully incorporated into bokeh's embed.