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Clarify who is meant to use the polyfill

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This commit is contained in:
Travis Ralston 2020-07-08 07:51:04 -06:00
parent 15b6a273c9
commit 9b0eeae2eb
1 changed files with 3 additions and 1 deletions
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4
src/@types/polyfill.ts
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@ -14,8 +14,10 @@ See the License for the specific language governing permissions and
limitations under the License. limitations under the License.
*/ */
// This is intended to fix re-resizer because of its unguarded `instanceof TouchEvent` checks.
export function polyfillTouchEvent() { export function polyfillTouchEvent() {
// Firefox doesn't have touch events, so create a fake one we can rely on lying about. // Firefox doesn't have touch events without touch devices being present, so create a fake
// one we can rely on lying about.
if (!window.TouchEvent) { if (!window.TouchEvent) {
// We have no intention of actually using this, so just lie. // We have no intention of actually using this, so just lie.
window.TouchEvent = class TouchEvent extends UIEvent { window.TouchEvent = class TouchEvent extends UIEvent {