Allow entrypoints.json to be hosted remotely

[rlvdx]

Fixes #76

• When the assets Webpack Encore builds are not hosted on a Docker container's filesystem but published remotely (on a Google Cloud Storage bucket for example), file_exists on entrypoints.json fails.
• When strict_mode is true, an exception is raised and it's imposible to load the assets.
• Just after this check and condition, a file_get_contents is used to retrieve the entrypoints.json contents.

What I'm proposing is to use file_get_contents earlier to allow fetching a remote entrypoints.json to solve the CDN use case. Does it seem OK?

On a side note, I don't see how to run the tests locally, so the feedback loop with TRavis makes it difficult to fix them. How should I do? Thanks :)

[piotrantosik]

hi, any news? it's any plan to implement this feature?

[rlvdx]

hi, any news? it's any plan to implement this feature?

Doesn't look like it, and I don't know how to make things go forward :)

[roublarstar]

Hello, I am in the same situation as you ... your solution seems viable to me too!

[Ahummeling]

Seems exactly like what's needed.
I'm not a maintainer of this library, but it would be nice if we could have this.