WorkingWiththeBrowser
Reactsupportsmostpopularbrowsers,includingInternetExplorer9andabove.
(Wedon'tsupportolderbrowsersthatdon'tsupportES5methods,butyoumayfindthatyourappsdoworkinolderbrowsersifpolyfillssuchases5-shimandes5-shamareincludedinthepage.You'reonyourownifyouchoosetotakethispath.)