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Fix crash when third party cookies are disabled #247

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Fix crash when third party cookies are disabled #247

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21 changes: 13 additions & 8 deletions src/paho-mqtt.js
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Original file line number Diff line number Diff line change
Expand Up @@ -106,14 +106,19 @@ function onMessageArrived(message) {
/**
* @private
*/
var localStorage = global.localStorage || (function () {
var data = {};

return {
setItem: function (key, item) { data[key] = item; },
getItem: function (key) { return data[key]; },
removeItem: function (key) { delete data[key]; },
};
var localStorage = (function () {
try {
// When third-party cookies are disabled accessing localStorage will cause an error
if (global.localStorage) return global.localStorage;
} catch (e) {
var data = {};

return {
setItem: function (key, item) { data[key] = item; },
getItem: function (key) { return data[key]; },
removeItem: function (key) { delete data[key]; },
};
}
})();

/**
Expand Down