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To display the same pen strokes in a second editor, an import object is built from the exported object as below:

  editorElement.addEventListener('exported', (event) => {
    const exports = event.detail.exports;

    console.log(exports);
    console.log(exports["application/vnd.myscript.jiix"]);

    toImport = exports['application/vnd.myscript.jiix'];
    ........
  }

However, it turns out that the structure of the above exported object (event.detail.exports) depends on the iink's protocol of whether it is WEBSOCKET or REST for the mimeType of application/vnd.myscript.jiix. Because of this difference, it is unable to display the pen strokes with REST from the exported object using this line:

toImport = exports['application/vnd.myscript.jiix'];

Why is the structure of the exported object different for different protocols? How to build pen strokes from the exported object of the protocol REST for import?

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The exported object of WEBSOCKET:

Object { "application/x-latex": "y", "application/vnd.myscript.jiix": "{\n \"type\": \"Math\",\n \"expressions\": [ {\n   \"type\": \"symbol\",\n   \"id\": \"math/12\",\n   \"label\": \"y\",\n   \"items\": [ {\n     \"timestamp\": \"2023-12-17 13:49:32.617000\",\n     \"X\": [ 102.393745, 103.1875, 103.45208, 104.245827, 104.510414, 105.304161, 106.097916, 106.891663,\n      107.42083, 107.685417, 107.685417, 108.214577, 108.479164, 108.479164, 108.479164, 109.008331,\n      109.008331, 109.008331, 108.743744, 108.743744, 108.214577, 107.15625, 105.833328, 105.568748,\n      104.510414, 103.1875 ],\n     \"Y\": [ 26.4583321, 27.78125, 28.8395824, 29.3687496, 30.1624985, 30.6916656, 30.1624985, 30.1624985,\n      29.3687496, 28.0458317, 27.2520828, 26.1937485, 25.135416, 24.3416653, 25.9291668, 28.0458317,\n      29.3687496, 30.6916656, 31.4854164, 32.2791672, 33.6020813, 33.6020813, 34.1312485, 34.9249992,\n      35.4541664, 35.9833336 ],\n     \"F\": [ 0.5, 0.758526385, 0.718526483, 0.700710416, 0.683189929, 0.700710416, 0.700710416, 0.6761536,\n      0.700710416, 0.746184707, 0.6761536, 0.729212582, 0.718526483, 0.6761536, 0.766522586, 0.80248946,\n      0.743674636, 0.743674636, 0.683189929, 0.6761536, 0.753112853, 0.714515865, 0.753112853, 0.683189929,\n      0.729212582, 0.753112853 ],\n     \"T\": [ 0, 232, 266, 333, 399, 500, 566, 600,\n      633, 699, 733, 766, 799, 832, 1233, 1266,\n      1299, 1333, 1366, 1400, 1466, 1600, 1633, 1666,\n      1933, 2000 ],\n     \"type\": \"stroke\",\n     \"id\": \"0000000001003300ff00\"\n    } ]\n  } ],\n \"id\": \"MainBlock\",\n \"version\": \"3\"\n}" }

The exported object of REST:

Object { "application/x-latex": "y", "application/vnd.myscript.jiix": {…} }
​"application/vnd.myscript.jiix": Object { type: "Math", id: "MainBlock", version: "3", … }
​"application/x-latex": "y"
​<prototype>: Object { … }