ref: dfab56b94698b9ebb5291931a9f67c6cebac8881
dir: opossum/README.md
# Opossum Web Browser Basic portable Web browser; only needs a Go compiler to compile, no C dependencies. The UI is built with https://github.com/mjl-/duit Still very experimental and most features are missing, here's a screenshot: http://psilva.sdf.org/scr.png Supported features: - rudimentary CSS/HTML5 support, large parts like float/flex layout are just stub implementations - Server-side rendered websites - Images (pre-loaded all at once though) - TLS - experimental JS/DOM can be activated (very basic jQuery examples work) - file downloads # Install ## Plan 9 You can download a tarball with the binary at http://psilva.sdf.org/opossum-plan9-amd64.tgz ``` ./opossum-plan9-amd64.bin ``` Also `/sys/lib/tls/ca.pem` needs to be present for TLS to work. ca certs can be downloaded from the curl homepage: ``` hget https://curl.haxx.se/ca/cacert.pem > /sys/lib/tls/ca.pem ``` To compile the source Go 1.15 is needed. Probably `$GOPROXY` should be set to `https://proxy.golang.org` ``` cd cmd/browse go run . ``` There are various command line options, visible with `-h`, most importantly to see errors: ``` go run . '-quiet=false' ``` (`-quiet=false` produces a lot of output, consider turning on scroll since processing waits for that...) or all messages: ``` go run . '-quiet=false' '-debug=true' ``` ## macOS Requirements: - Go - Plan9Port ``` cd cmd/browse go run . ``` # JS support It's more like a demo and it's not really clear right now how much sandboxing is really needed. A rudimentary AJAX implementation is there though. Use on your own Risk!  Mostly based on goja (ECMAScript 5.1) and https://github.com/fgnass/domino (DOM implementation in JS). Some sort of DOM diffing is needed, also AJAX functions, `getComputedStyle` etc. are either missing or stubs. Very simple jQuery based code works though, e.g. jQuery UI Tab view https://jqueryui.com/resources/demos/tabs/default.html or the toggle buttons on https://golang.org/pkg There is also highly experimental ES6 support with Babel. Try on Plan 9 with e.g.: ``` go run . '-experimentalJsInsecure=true' -startPage https://jqueryui.com/resources/demos/tabs/default.html ``` or macOS etc.: ``` go run . -experimentalJsInsecure=true -startPage https://jqueryui.com/resources/demos/tabs/default.html ``` # TODO - load images on the fly - implement more parts of HTML5 and CSS - create a widget for div/span - clean up code, support webfs, snarf