Viola loads eternally in some browsers private window

[kubosho]

Bramble uses IndexedDB, IndexedDB not working in some browsers private window.

URL

https://writing.viola.pub/

Actual

Viola loads eternally and output error messages on console in some browsers private window.

error message 1.

Filer error:  TypeError: "this.db is null"
_getObjectStorehttps://writing.viola.pub/static/js/bramble.092907ab.js:3:11680_gethttps://writing.viola.pub/static/js/bramble.092907ab.js:3:11987getObjecthttps://writing.viola.pub/static/js/bramble.092907ab.js:3:12183shttps://writing.viola.pub/static/js/bramble.092907ab.js:2:19022ohttps://writing.viola.pub/static/js/bramble.092907ab.js:3:5713onerrorhttps://writing.viola.pub/static/js/bramble.092907ab.js:3:13224openhttps://writing.viola.pub/static/js/bramble.092907ab.js:3:13183ohttps://writing.viola.pub/static/js/bramble.092907ab.js:3:5244<anonymous>https://writing.viola.pub/static/js/bramble.092907ab.js:4:10762hhttps://writing.viola.pub/static/js/bramble.092907ab.js:1:2298chttps://writing.viola.pub/static/js/bramble.092907ab.js:1:1156dhttps://writing.viola.pub/static/js/bramble.092907ab.js:1:2481<anonymous>https://writing.viola.pub/static/js/bramble.092907ab.js:4:18690<anonymous>https://writing.viola.pub/static/js/bramble.092907ab.js:1:77<anonymous>https://writing.viola.pub/static/js/bramble.092907ab.js:1:2

error message 2.

[Bramble] browser filesystem inaccessible (needs to be re-formatted, or permission denied due to private browsing mode.

error message 3.

Bramble error 
Object { name: "EFILESYSTEMERROR", code: "EFILESYSTEMERROR", errno: 1001, message: "unknown error", stack: "e@https://writing.viola.pub/static/js/bramble.092907ab.js:2:16416\no/this.queueOrRun@https://writing.viola.pub/static/js/bramble.092907ab.js:3:4982\n[20]</</o.prototype[t]@https://writing.viola.pub/static/js/bramble.092907ab.js:3:6643\n_@https://writing.viola.pub/static/js/bramble.092907ab.js:4:7386\nEventListener.handleEvent*b/<@https://writing.viola.pub/static/js/bramble.092907ab.js:4:4787\nn@https://writing.viola.pub/static/js/bramble.092907ab.js:3:23854\nEventListener.handleEvent*r@https://writing.viola.pub/static/js/bramble.092907ab.js:3:24002\nb@https://writing.viola.pub/static/js/bramble.092907ab.js:4:4708\ni/<@https://writing.viola.pub/static/js/bramble.092907ab.js:4:2348\nEventListener.handleEvent*i@https://writing.viola.pub/static/js/bramble.092907ab.js:4:1712\nu@https://writing.viola.pub/static/js/bramble.092907ab.js:4:4207\nP@https://writing.viola.pub/static/js/bramble.092907ab.js:4:9041\nEventListener.handleEvent*u@https://writing.viola.pub/static/js/bramble.092907ab.js:4:8929\nv.load@https://writing.viola.pub/static/js/bramble.092907ab.js:4:11097\nvalue@https://writing.viola.pub/static/js/main.ecf99da0.js:1:68260\na</e.prototype.notifyAll@https://writing.viola.pub/static/js/main.ecf99da0.js:1:43740\nclose@https://writing.viola.pub/static/js/main.ecf99da0.js:1:161091\ncloseAll@https://writing.viola.pub/static/js/main.ecf99da0.js:1:24897\nperform@https://writing.viola.pub/static/js/main.ecf99da0.js:1:24395\ns@https://writing.viola.pub/static/js/main.ecf99da0.js:1:50420\nperform@https://writing.viola.pub/static/js/main.ecf99da0.js:1:24315\nbatchedUpdates@https://writing.viola.pub/static/js/main.ecf99da0.js:1:154277\ni@https://writing.viola.pub/static/js/main.ecf99da0.js:1:4707\n_renderNewRootComponent@https://writing.viola.pub/static/js/main.ecf99da0.js:1:51664\n_renderSubtreeIntoContainer@https://writing.viola.pub/static/js/main.ecf99da0.js:1:52651\nrender@https://writing.viola.pub/static/js/main.ecf99da0.js:1:52778\n@https://writing.viola.pub/static/js/main.ecf99da0.js:1:63968\nt@https://writing.viola.pub/static/js/main.ecf99da0.js:1:96\n@https://writing.viola.pub/static/js/main.ecf99da0.js:1:197966\nt@https://writing.viola.pub/static/js/main.ecf99da0.js:1:96\n@https://writing.viola.pub/static/js/main.ecf99da0.js:1:478\n@https://writing.viola.pub/static/js/main.ecf99da0.js:1:2\n" }

Not working browsers

• Firefox Nightly 62.0a1 (2018-06-04)
• Edge 42.17134.1.0 (EdgeHTML 17.17134)

Working browser

• Chrome Canary 69.0.3451.0

[spring-raining]

Thanks for your reporting! IndexedDB is an essential API for Viola, so we probably should present the users who access using private windows to guide to access by normal mode.