fix crashing of Opera Presto, close #595

CHANGELOG.md

@@ -6,6 +6,7 @@
 - Added `Map#updateOrInsert` [stage 1 proposal](https://docs.google.com/presentation/d/1_xtrGSoN1-l2Q74eCXPHBbbrBHsVyqArWN0ebnW-pVQ/), per July TC39 meeting
 - Added a fix for [`Math.hypot` V8 7.7 bug](https://bugs.chromium.org/p/v8/issues/detail?id=9546), since it's still not stable without adding results to `core-js-compat`
 - Added a workaround for APIs where not possible to replace broken native `Promise`, [#579](https://github.com/zloirock/core-js/issues/579) - added `.finally` and patched `.then` to / on native `Promise` prototype
+- Fixed crashing of Opera Presto, [#595](https://github.com/zloirock/core-js/issues/595)
 - Fixed incorrect early breaking of `{ Map, Set, WeakMap, WeakSet }.deleteAll`
 - Fixed some missed dependencies in entry points
 - Added compat data for Node 12.5, FF 67, Safari 13

packages/core-js/internals/array-buffer-view-core.js

@@ -26,7 +26,8 @@ var isPrototypeOf = ObjectPrototype.isPrototypeOf;
 var TO_STRING_TAG = wellKnownSymbol('toStringTag');
 var TYPED_ARRAY_TAG = uid('TYPED_ARRAY_TAG');
 var NATIVE_ARRAY_BUFFER = !!(global.ArrayBuffer && DataView);
-var NATIVE_ARRAY_BUFFER_VIEWS = NATIVE_ARRAY_BUFFER && !!setPrototypeOf;
+// Fixing native typed arrays in Opera Presto crashes the browser, see #595
+var NATIVE_ARRAY_BUFFER_VIEWS = NATIVE_ARRAY_BUFFER && !!setPrototypeOf && classof(global.opera) !== 'Opera';
 var TYPED_ARRAY_TAG_REQIRED = false;
 var NAME;