Write JS snippet which rewrites bzz:// urls to gateway urls

[gbalint]

We would like to provide a small JS script which can be added to webpages to rewrite bzz:// links to http://current.gateway/bzz:/ links, so the page can work for users who don't run swarm nodes or any other special swarm software.

See the details here: https://gist.github.com/gbalint/9e43a97a781b482731f1542ff683cf35

[gbalint]

https://github.com/ethersphere/swarm-url-rewriter/

[cobordism]

Why do we need to include "swarm-gateways.net" in the javascript file?

Can we not automatically use whichever host we are on? i.e. if a user is browsing at localhost:8500 then the script will replace bzz:// with http://localhost:8500/bzz:/ and if a user is browsing on swarm-gateways.net then the script will use that?.. and so on.

[lmars]

Or, just replace bzz://... with /bzz:/...?

[cobordism]

yeah, that might work too. Indeed I think it's simpler, yet functionally equivalent.

[gbalint]

Ok, please check this: ethersphere/swarm-url-rewriter@d369f66

[cobordism]

So we should add this JS sippet to all our swarm pages, yes?

[gbalint]

See #192 for the error templates. As I see there are no other gateway urls in the swarm codebase. As next step I'm checking the swam homepage

[gbalint]

I realized that there are only relative urls in the swarm homepage, so no need to update that.
@homotopycolimit Do you think there is anything else I should update?

[cobordism]

let me see... there is the swarm homepage, there is fabio's dapp overview (swarmapps.eth), and then there are the dapps - but they don't contain bzz:// URLs ...

[gbalint]

Too hacky solution, conflicts with the js of the dapps