Playground transpiler doesn't work in iOS 8 #15640
Description
Recently (within the last couple of weeks) TypeScript Playground stopped working in mobile Safari (iOS 8).
Toolbar buttons and the editor itself (left panel) works, but transpilation doesn't. There's no transpiled code (right panel is empty), no errors are highlighted in the editor, clicking on Run button results in opening a new window.
It wasn't possible for me to debug it completely, but I've managed to get an error message that happens on transpilation:
Error: undefined is not a function
(evaluating 'e.next()')
Z@https://www.typescriptlang.org/
play/Script/vs/language/typescript/lib/
typescriptServices.js:22:18802
Ne@https://www.typescriptlang.org/
play/Script/vs/language/typescript/lib/
typescriptServices.js:38:11121
n@https://www.typescriptlang.org/play/
Script/vs/language/typescript/lib/
typescriptServices.js:46:22433
b@https://www.typescriptlang.org/play/
Script/vs/language/typescript/lib/
typescriptServices.js:54:31583
s@https://www.typescriptlang.org/play/
Script/vs/language/typescript/lib/
typescriptServices.js:63:17177
f@https://www.typescriptlang.org/play/
Script/vs/language/typescript/lib/
typescriptServices.js:63:17706
getCompletionsAtPosition@https://
www.typescriptlang.org/play/Script/vs/
language/typescript/src/worker.js:
9:2556
fmr©https://www.typescriptlang.org/
play/Script/vs/base/worker/
workerMain.js#typescript:11:8381
_handleMessage@https://
www.typescriptlang.org/play/Script/vs/
base/worker/workerMain.js#typescript:
10:20568
handleMessage@https://
www.typescriptlang.org/play/Script/vs/
base/worker/workerMain.js#typescript:
10:12538
_handleMessage@https://
www.typescriptlang.org/play/Script/vs/
base/worker/workerMain.js#typescript:
10:10659
handleMessage@https://
www.typescriptlang.org/play/Script/vs/
base/worker/workerMain.js#typescript:
10:10230
onmessage©https://
www.typescriptlang.org/play/Script/vs/
base/worker/workerMain.js#typescript:
10:20272
onmessage@https://
www.typescriptlang.org/play/Script/vs/
base/worker/workerMain.js#typescript:
11:7957