Also I've installed qtwebgl maybe it is necessary too. guix search webgl name: qtwebglplugin version: 5.12.6 outputs: out systems: x86_64-linux i686-linux dependencies: [email protected] [email protected] [email protected] + [email protected] location: gnu/packages/qt.scm:1040:2 homepage: https://www.qt.io/ license: LGPL 2.1, LGPL 3 synopsis: QPA plugin for running an application via a browser using streamed WebGL commands description: Qt back end that uses WebGL for rendering. It allows Qt + applications (with some limitations) to run in a web browser that supports + WebGL. WebGL is a JavaScript API for rendering 2D and 3D graphics within any + compatible web browser without the use of plug-ins. The API is similar to + OpenGL ES 2.0 and can be used in HTML5 canvas elements relevance: 13
hint: Run `guix search ... | less' to view all the results. $ guix install qtwebglplugin ... December 28, 2019 3:26 PM, [email protected] wrote: > Yes, it works now! Thank you! > I did this: > 1) Icecat -> Preferences -> Privacy & Security tab -> Icecat-specific privacy > settings -> checked > option Enable WebGL > 2) about:config -> search by 'whitelist' -> > security.sandbox.content.read_path_whitelist -> added a > value: /gnu/store/ > 3) after Icecat restart video works > https://www.youtube.com/watch?v=9K26GI4C3uY > > Thank you! > > PS: Youtube gives much knowledge and information for me in convenient way. I > want to share with > others this way. And it's policies to get personal data, history and interest > gives to it and to > the authors way to gain much money. Sorry, while other free and secure > projects just put on their > shoes, youtube runs on the millions computers. > > December 28, 2019 7:55 AM, "Julien Lepiller" <[email protected]> wrote: > >> Le 28 décembre 2019 05:23:18 GMT+01:00, Maxim Cournoyer >> <[email protected]> a écrit : >> >>> Hello Znavko, >>> >>> [email protected] writes: >> >> ffmpeg was installed: >>> [...] >> >> Those two video are working (cause youtube had converted them, I >>> think). >> >> On the other videos that are not displaying and often this is live >>> streams (I think, youtube did not converted them to acceptable format) >> >> these Javascript warnings with WebGL errors appear in terminal: >> >> https://www.youtube.com/watch?v=9K26GI4C3uY >> >> $ icecat >> JavaScript error: resource:///modules/sessionstore/SessionStore.jsm, >>> line 1325: uncaught exception: 2147746065 >> >> JavaScript warning: >>> https://mail.disroot.org/rainloop/v/1.12.1/static/js/min/openpgp.min.js, >>> line 0: Successfully compiled asm.js code (total compilation time 94ms) >> >> JavaScript warning: >>> https://mail.disroot.org/rainloop/v/1.12.1/static/js/min/openpgp.min.js, >>> line 0: Successfully compiled asm.js code (total compilation time 7ms) >> >> JavaScript warning: >>> https://mail.disroot.org/rainloop/v/1.12.1/static/js/min/openpgp.min.js, >>> line 0: Successfully compiled asm.js code (total compilation time 2ms) >> >> console.warn: LoginRecipes: "getRecipes: falling back to a >>> synchronous message for:" "https://www.youtube.com"; >> >> JavaScript warning: >>> https://www.youtube.com/yts/jsbin/player_ias-vfl22ubNH/ru_RU/base.js, >>> line 5359: Error: WebGL warning: getContext: Disallowing antialiased >>> backbuffers due to blacklisting. >> >> JavaScript warning: >>> https://www.youtube.com/yts/jsbin/player_ias-vfl22ubNH/ru_RU/base.js, >>> line 5359: Error: WebGL warning: <SetDimensions>: Failed to create >>> WebGL context: WebGL is currently disabled. >> >> JavaScript warning: >>> https://www.youtube.com/yts/jsbin/player_ias-vfl22ubNH/ru_RU/base.js, >>> line 5359: Error: WebGL warning: getContext: Disallowing antialiased >>> backbuffers due to blacklisting. >> >> JavaScript warning: >>> https://www.youtube.com/yts/jsbin/player_ias-vfl22ubNH/ru_RU/base.js, >>> line 5359: Error: WebGL warning: <SetDimensions>: Failed to create >>> WebGL context: WebGL is currently disabled. >> >> JavaScript warning: >>> https://www.youtube.com/yts/jsbin/player_ias-vfl22ubNH/ru_RU/base.js, >>> line 5359: Error: WebGL warning: getContext: Disallowing antialiased >>> backbuffers due to blacklisting. >> >> JavaScript warning: >>> https://www.youtube.com/yts/jsbin/player_ias-vfl22ubNH/ru_RU/base.js, >>> line 5359: Error: WebGL warning: <SetDimensions>: Failed to create >>> WebGL context: WebGL is currently disabled. >> >> Icecat console displays: >> Error: WebGL warning: getContext: Disallowing antialiased backbuffers >>> due to blacklisting. base.js:5359:276 >> >> Error: WebGL warning: <SetDimensions>: Failed to create WebGL >>> context: WebGL is currently disabled. base.js:5359:276 >> >> Blocked https://www.youtube.com/watch?v=9K26GI4C3uY from extracting >>> canvas data because no user input was detected. base.js:2900:157 >> >> and many ties this: >> Request to access cookie or storage on >>> “https://i.ytimg.com/vi/sfw1IB58HYA/hqdefault.jpg?sqp=-oaymwE…qpAwsIARUAAIhCGAFwAQ==&rs=AOn4CLDPtI4k >>> 5jl0Nq6M8f7wUF2sjlv6g” >> >> was blocked because we are blocking all third-party storage access >> requests and content blocking is enabled. >>> I can reproduce the problem; it seems that WebGL is now a required by >>> youtube when using Icecat 68? That's strange because the same video >>> plays fine in an older version of Icecat (but I have to reload the page >>> to get it playing). >>> >>> Anyway, the problem seems to have more to do with Youtube than HTML5 >>> playback in Icecat. A random HTML5 video playback test site [0] may >>> help to convince you of such :-) >>> >>> You could try enabling WebGL in your Icecat (disabled by default) by >>> visiting the "IceCat-specific privacy settings" of the Settings page >>> and >>> checking "Enable WebGL". That didn't work for me, as my driver seems >>> blacklisted by Mozilla. I tried force enabling it with suggestions >>> from >>> this page [1] but your link would still wouldn't be happy with my WebGL >>> support. >>> >>> HTH, >>> >>> Maxim >>> >>> [0] https://tekeye.uk/html/html5-video-test-page >>> [1] >>> https://developer.mozilla.org/en-US/docs/Mozilla/QA/Graphics_Blocklisting >> >> It's not blacklisted, it's blocked by mozilla's sandbox pplicy. In >> about:config you can change an >> option named sandbox.readpath.whitelist or similar. Set it to /gnu/store/ >> (with a trailing / which >> means recursively) to allow access to the store, where icecat can find its >> webgl libraries. Then >> restart the browser. >> >> We should add that by default (or something more restrictive) but I don't >> know how.
