OSX WebView中的localStorage在頁面重新加載時不持久-Office365插件

Question

我在OSX（El Capitan + Yosemite）的Web localStorage中遇到localStorage問題。

我正在制作一個Office365應用程序，在Mac上使用 Webview。 在Windows上甚至在Mac上的Safari上都可以正常工作-事實證明，只是Mac webview存在麻煩。 它位於托管域上，所以這不是問題。

從下面的測試代碼中可以看到，我將信息保存到localStorage，然后使用該值設置變量。 這意味着它一定已經保存到localStorage，但是如果刷新頁面，則數據將丟失。 注意：並不是我的應用程序中的所有數據都丟失了，只是有些丟失。

保存時未收到QUOTA_EXCEEDED_ERR 。

這是我的測試代碼，刷新后失敗。

$scope.initTest = function () {

    $scope.errorsRecorded += "************** Initialize **************";

    var notNested = localStorage.getItem('lclNotNested');
    if (!notNested) {
        $scope.errorsRecorded += "*_*__NOT NESTED NOT SAVED";
        $scope.notNested = "NOTSET";
    } else {
        $scope.errorsRecorded += "*_*__NOT NESTED ___ val=" + notNested + ';';
        $scope.notNested = JSON.parse(notNested);
    }
};
$scope.initTest();


// Button press event

$scope.setSingle = function () {
    // Set the value to localStorage, then get it back for the UI
    // so we know the value was set.
    try {
        localStorage.setItem('lclNotNested', JSON.stringify(Date.now()));
    } catch (e) {
        $scope.errorsRecorded = $scope.errorsRecorded + '.....<br/>\r\n ' + e;
    }

    $scope.notNested = JSON.parse(localStorage.getItem('lclNotNested'));
};

這是正確設置值然后無法加載的一些屏幕截圖。

我花了數小時試圖弄清楚它，卻找不到調試它的方法。 我沒有訪問底層Webview代碼的權限，它只是Microsoft提供的功能之上的Web應用程序。

有誰知道發生了什么事，或者請問如何調試（例如，在Mac上查看Web視圖的localStorage文件）？

Answer 1

刪除問題的辯論，但這勢必會吸引其他人...

經過大量的工作量並創建了該jsfiddle並嘗試在應用程序中嘗試之后，看來Office 365應用程序當前無法像在OSX上的Webview中所預期的那樣持久保存localStorage。

我對部分持久性的困惑是某些信息已保存到文檔中。 其他（不太重要）的信息僅保存到localStorage，因此不會持久保存。

在我的情況下，答案是-如果您希望保留頁面重新加載的持久性或保存並重新打開Office 365應用程序-將其保存到文檔中。 不要依賴localStorage做任何事情。

jsfiddle的代碼：

<script>


        function deletMany() {

            var getManyNumber = parseInt(document.getElementById('setManyNumber').value);

            for (var i = 0; i < getManyNumber; i++) {
                try {
                    localStorage.removeItem('many' + i);
                } catch (e) {                   
                }
            }

            getMany();
        }

        function getMany() {
            var outputText = '';

            var getManyNumber = parseInt(document.getElementById('setManyNumber').value);


            for (var i = 0; i < getManyNumber; i++) {
                try {
                    var ot = localStorage.getItem('many' + i);

                    outputText += (ot) ? ot + '_' : i + " - no set <br/>";
                } catch (e) {
                    outputText += '|||' + i + '-' + e;
                }
            }

            var elm = document.getElementById('results');
            elm.innerHTML = outputText;
        }

        function setMany() {

            var getManyNumber = parseInt(document.getElementById('setManyNumber').value);

            for (var i = 0; i < getManyNumber; i++) {
                localStorage.setItem('many' + i, "MANY" + i);
            }
        }


        //---------

        function deleteFewWithLots() {

            var getLotsNumber = parseInt(document.getElementById('setLotsNumber').value);

            for (var i = 0; i < getLotsNumber; i++) {
                try {
                    localStorage.removeItem('few' + i);
                } catch (e) {

                }
            }

            getFewWithLots();

        }

        function getFewWithLots() {
            var outputText = '';

            var getLotsNumber = parseInt(document.getElementById('setLotsNumber').value);

            for (var i = 0; i < getLotsNumber; i++) {
                try {
                    var ot = localStorage.getItem('few' + i);

                    outputText += (ot) ? i + ':' + ot + '_' : i + " - no set <br/> \r\n___";
                } catch (e) {
                    outputText += '|||' + i + '-' + e;
                }
            }

            var elm = document.getElementById('results');
            elm.innerHTML = outputText;
        }

        function setFewWithLots() {

            var getLotsNumber = parseInt(document.getElementById('setLotsNumber').value);

            for (var i = 0; i < getLotsNumber; i++) {
                localStorage.setItem('few' + i, "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Section 1.10.32 of de Finibus Bonorum et Malorum, written by Cicero in 45 BC. Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur? Quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum qui dolorem eum fugiat quo voluptas nulla pariatur? 1914 translation by H. Rackham. But I must explain to you how all this mistaken idea of denouncing pleasure and praising pain was born and I will give you a complete account of the system, and expound the actual teachings of the great explorer of the truth, the master-builder of human happiness. No one rejects, dislikes, or avoids pleasure itself, because it is pleasure, but because those who do not know how to pursue pleasure rationally encounter consequences that are extremely painful. Nor again is there anyone who loves or pursues or desires to obtain pain of itself, because it is pain, but because occasionally circumstances occur in which toil and pain can procure him some great pleasure. To take a trivial example, which of us ever undertakes laborious physical exercise, except to obtain some advantage from it? But who has any right to find fault with a man who chooses to enjoy a pleasure that has no annoying consequences, or one who avoids a pain that produces no resultant pleasure?" + i + '______________________________________________________________________ __________________________________________ ____________________________');
            }
        }


    </script>


<body>

    <hr />
    <button onclick="deletMany()">Delete Many</button>  
    <button onclick="getMany()">Get Many</button>
    <input id="setManyNumber" type="number" value="1" style="width:75px;" />
    <button onclick="setMany()">Set Many</button>
    <button onclick="deleteFewWithLots()">Delete Few Items With Lots</button>
    <button onclick="getFewWithLots()">Get Few Items With Lots</button>
    <input id="setLotsNumber" type="number" value="1" style="width:75px;" />
    <button onclick="setFewWithLots()">Set Few Items With Lots</button>
    <hr />
    <div style="background-color:aqua; word-break:break-all; width:500px;margin-left:100px; position: absolute; z-index: 10000;">
        <div id="results"></div>
    </div>

</body>