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Kartikaya Gupta authored
Other mobile browsers disallow browser-based pinch zooming when the first touchstart is preventDefaulted, even if the second one is not. We allowed pinch zooming in that scenario. This patch makes it so that if the first touchstart is preventDefaulted, then subsequent touchstart events are also preventDefaulted, which brings our behaviour in line with that of other browsers. Differential Revision: https://phabricator.services.mozilla.com/D21420 --HG-- extra : moz-landing-system : lando
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