If a file supports previews (ex: 'markdown'), you can open it a number of ways:

This depends however on what you include as dependencies/extensions in your application.

@vince-fugnitto

i mean like this

nvm got it

Though it never loads the preview for me. It is always a white screen. Is there a way to fix this?

@xenfo

can you share what you’re attempting to preview, perhaps a screenshot?

@vince-fugnitto

sure but it is not just one thing. Even stuff like google won't load.

And

I believe the use-case you're trying to achieve might not work due to security reasons. Please see the relevant discussions here: https://github.com/eclipse-theia/theia/issues/3169

There is also an error reported which might be useful to you: "Refused to display 'https://www.google.com/' in a frame because it set 'X-Frame-Options' to 'sameorigin'."

ok

I'll look

@vince-fugnitto

It says it should work now. Any idea why it wouldn't?

I think based on the error message it is due to increased security, the comment on the issue was likely written before security updates. If I’m mistaken perhaps others can chime in.

Oh that's unfortunate.

many websites does not allow embedding because of security issues, so it is expected

main use case for mini-browser it is to preview changes to a app or some html files on which you are working on

@vince-fugnitto

i understand that it is only for html/css and markdown files but is it possible to somehow access localhost on it?

because the example I first posted they got it to work.

localhost always points to your local machine, you should use the remote address

Theia is generally using https://github.com/eclipse-theia/theia/blob/c2ffdc71b63ddd761f6a1d2903d7dd9c05f14466/packages/core/src/browser/external-uri-service.ts#L46 to remap localhost to external URI, but I don't think it is used by the mini browser.

@kittaakos

Do you know how to auto remap localhost to externally accessible URL for the mini browser?

I'm running the yarn version of theia in a docker container cause im not sure how to make the ui work for the image. So I don't really know what the public ip would be.