Web Compatibility Support • 2gis.ru: webgl regression

This site is known to work before 34.1.0 and working now in old builds (did not check exact version is broke) On 34.2.0 shaders fails to link

CODE:

TypeError: n is null[Learn More] app.bcd24be9da95c0cf9559.js:1:1338667InvalidStateError sync-loader.js:5:16221TypeError: n is null[Learn More] app.bcd24be9da95c0cf9559.js:1:1338667InvalidStateError sync-loader.js:5:16221TypeError: window.mapgl is undefined[Learn More] rarity.54c06eac54e71c325094.js:1:1669843Error: WebGL: texImage2D: Alpha-premult and y-flip are deprecated for non-DOM-Element uploads. rarity.54c06eac54e71c325094.js:1:863734Error: WebGL: texImage2D: Conversion requires change inalpha-premultiplication. rarity.54c06eac54e71c325094.js:1:863734Error: WebGL: texSubImage2D: Conversion requires pixel reformatting. rarity.54c06eac54e71c325094.js:1:862664[WebGL] Generating mipmaps for texture after subImage update rarity.54c06eac54e71c325094.js:1:862826Error: WebGL: texSubImage2D: Conversion requires pixel reformatting. rarity.54c06eac54e71c325094.js:1:862664[WebGL] Generating mipmaps for texture after subImage update rarity.54c06eac54e71c325094.js:1:862826Error: WebGL: texSubImage2D: Conversion requires pixel reformatting. rarity.54c06eac54e71c325094.js:1:862664[WebGL] Generating mipmaps for texture after subImage update rarity.54c06eac54e71c325094.js:1:862826Error: WebGL: linkProgram: Must have an compiled fragment shader attached. rarity.54c06eac54e71c325094.js:1:888262Error: WebGL: getUniformLocation: `program` must be linked. rarity.54c06eac54e71c325094.js:1:885565Error: WebGL: No further warnings will be reported for this WebGL context. (already reported 32 warnings) rarity.54c06eac54e71c325094.js:1:885565Failed to initialize UBO. Invalid UBO block is provided. rarity.54c06eac54e71c325094.js:1:1253753Failed to initialize UBO. Invalid UBO block is provided. rarity.54c06eac54e71c325094.js:1:1253753TypeError: n is null[Learn More] app.bcd24be9da95c0cf9559.js:1:1338667InvalidStateError sync-loader.js:5:16221window.controllers is deprecated. Do not use it for UA detection.