gren-lang/browser

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Run Gren in the browser

Stars: 3
Forks: 5
Open beginner issues: 0
Indexed issues: 95
Avg merge: 4d 3h
Merged PRs (30d): 1

Dominant language: JavaScript
License: No license data
Last GitHub push: Sep 9, 2026
Latest indexed: Sep 20, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted

Beginner friendly Everything

Open All

95 open issues indexed

Add Html.inline and Html.Attributes.inline Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

gren-lang/browser#105 · Opened Oct 21, 2025
Add Html.none, Html.Attributes.none Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

gren-lang/browser#104 · Opened Oct 21, 2025
Explore getting rid of descendant count in virtual dom implementation Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

gren-lang/browser#102 · Opened Jul 25, 2025
WebSockets Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

gren-lang/browser#101 · Opened Jul 18, 2025
Implement WebGPU API Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

gren-lang/browser#100 · Opened Jul 18, 2025
2D Canvas API Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

gren-lang/browser#99 · Opened Jul 18, 2025
Adding attributes to the <body> Open

bug help wanted

Difficulty 4/5 3-5 days Newbie friendliness 35/100

gren-lang/browser#28 · Opened Sep 30, 2023
Add `Html.Events.onMouseMove` event Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

gren-lang/browser#49 · 1 reaction · Opened Dec 5, 2022
for `<select value="">`, `Html.Attributes.value` doesn't work Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

gren-lang/browser#55 · Opened Aug 9, 2022
`main` node removal → Uncaught TypeError Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

gren-lang/browser#60 · Opened Aug 9, 2022
input with a `type_ "date"` in IE → "invalid argument" script error Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

gren-lang/browser#56 · Opened Aug 9, 2022
`Html.Attributes.checked` documentation: add it can be used with `type_ "radio"` Open

Difficulty 1/5 Under an hour Newbie friendliness 45/100

gren-lang/browser#50 · Opened Aug 9, 2022
`Html` renders differently depending on `Model` history. example: CSS borders Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

gren-lang/browser#57 · Opened Aug 9, 2022
attributes missing Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

gren-lang/browser#51 · Opened Aug 9, 2022
`Html.map`ed submodule in IE → bug Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

gren-lang/browser#52 · Opened Aug 9, 2022
`onMouseOver,-Out,-Enter,-Leave` documentation Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

gren-lang/browser#54 · Opened Aug 9, 2022
`onBlur` in Chrome when user go back to history → "alien" message Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

gren-lang/browser#61 · Opened Aug 9, 2022
CSS custom properties are not applied to DOM Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

gren-lang/browser#63 · Opened Aug 9, 2022
`iframe` → children are put outside of the inner html/body Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

gren-lang/browser#68 · Opened Aug 9, 2022
input `type_ "range"` with `step` after ` value` attribute → slider maxed always Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

gren-lang/browser#62 · Opened Aug 9, 2022
debugger frozen on Chrome in Mojave: no click events registered Open

Difficulty 4/5 3-5 days Newbie friendliness 15/100

gren-lang/browser#22 · Opened Aug 9, 2022
link with `href` omitted or `""` clicked → `External UrlRequest` incorrectly generated Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

gren-lang/browser#58 · Opened Aug 9, 2022
Svg.a and Svg.Attributes.xlinkHref → SPA features are bypassed, causes a pageload Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

gren-lang/browser#24 · Opened Aug 9, 2022
`Browser.Events.onClick` documentation example is confusing Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

gren-lang/browser#21 · Opened Aug 9, 2022
`--optimize` → `Browser.Dom.NotFound` becomes undefined Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

gren-lang/browser#20 · Opened Aug 9, 2022
link with `download ""` clicked → `Browser.Internal` event Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

gren-lang/browser#19 · Opened Aug 9, 2022
`update` → debugger TypeError Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

gren-lang/browser#18 · Opened Aug 9, 2022
`navigation-in-elements.md` sample code: back/forward navigation broken Open

Difficulty 3/5 1-2 days Newbie friendliness 20/100

gren-lang/browser#16 · Opened Aug 8, 2022
`getElement` → document's scene instead of that of the target Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

gren-lang/browser#15 · Opened Aug 8, 2022
navigating back in time with debugger open → mouse wheel scrolling is unresponsive Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

gren-lang/browser#14 · Opened Aug 8, 2022
`onResize` embedded in "Chrome Custom Tabs" → height result incorrect Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

gren-lang/browser#13 · Opened Aug 8, 2022
`Navigation.back` can generate 2 `UrlChange` events Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

gren-lang/browser#12 · Opened Aug 8, 2022
`Msg` trigger with `Model` containing a long `List` → debugger crash Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

gren-lang/browser#11 · Opened Aug 8, 2022
`Browser.Dom.Focus` on disabled element → `Ok ()` Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

gren-lang/browser#10 · Opened Aug 8, 2022
target `"_self"` is set → url is loaded even if it's an internal request Open

Difficulty 4/5 3-5 days Newbie friendliness 15/100

gren-lang/browser#9 · Opened Aug 8, 2022
`pushUrl` documentation: add that giving just the path onwards is allowed Open

Difficulty 1/5 Under an hour Newbie friendliness 35/100

gren-lang/browser#8 · Opened Aug 8, 2022
`Browser.Navigation.pushUrl` without `/` → runtime exception Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

gren-lang/browser#7 · Opened Aug 8, 2022
`getViewport` height result incorrect Open

Difficulty 3/5 1-2 days Newbie friendliness 15/100

gren-lang/browser#6 · Opened Aug 8, 2022
documentation: clear up how to init from js Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

gren-lang/browser#5 · Opened Aug 8, 2022
`keypress` event is deprecated Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

gren-lang/browser#4 · Opened Aug 8, 2022
`navigator.userAgent` in Chrome changing soon Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

gren-lang/browser#3 · Opened Aug 8, 2022
`Browser.Navigation.load` with url containing `#` doesn't actually cause a page load Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

gren-lang/browser#2 · Opened Aug 8, 2022
`File.Download.bytes` on Mobile Safari and Chrome causes problems Open

Difficulty 4/5 3-5 days Newbie friendliness 15/100

gren-lang/browser#43 · Opened Aug 8, 2022
`File.mime` in File.mime can return `""` Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

gren-lang/browser#44 · Opened Aug 8, 2022
`File.toString/Url/Bytes` on a drag-and-dropped folder → runtime exception Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

gren-lang/browser#45 · Opened Aug 8, 2022
`File.toString` doesn't work on non-UTF-8 files Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

gren-lang/browser#48 · Opened Aug 8, 2022
File.Select.file/files' documentation: add that Mime argument might not be respected Open

Difficulty 1/5 Under an hour Newbie friendliness 35/100

gren-lang/browser#47 · Opened Aug 8, 2022
`File.toBytes` isn't garbage-collected Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

gren-lang/browser#46 · Opened Aug 8, 2022
`Svg.Attributes.style` not consistent with `Html.Attributes.style` Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

gren-lang/browser#25 · Opened Aug 8, 2022
`xlink` prefixed attributes deprecated Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

gren-lang/browser#26 · Opened Aug 8, 2022

gren-lang/browser

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