When unity released webgl, jsonconvert Serializeobject() conversion failed

The error message is shown in the figure

Firefox error reporting

Google error reporting

reason ：webGL Only use Unity The serialization tool comes with

Document not found

Modify the way

Serialization Dictionary Dictionary<TKey,TValue>

#region Dictionary serialize ,

using System;
using System.Collections;
using System.Collections.Generic;

public class SerializeDictionary
{
    
    public static string Dictionary2Json<TKey, TValue>(Dictionary<TKey, TValue> dic)
    {
    
        return JsonUtility.ToJson(new SerializeDictionary<TKey, TValue>(dic));
    }

    public static Dictionary<TKey, TValue> Json2Dictionary<TKey, TValue>(string str)
    {
    
        return JsonUtility.FromJson<SerializeDictionary<TKey, TValue>>(str).ToDictionary();
    }
}

[Serializable]
public class SerializeDictionary<TKey, TValue> : ISerializationCallbackReceiver
{
    
    [SerializeField]
    List<TKey> keys;
    [SerializeField]
    List<TValue> values;

    Dictionary<TKey, TValue> targetDictionary;
    public Dictionary<TKey, TValue> ToDictionary() {
     return targetDictionary; }

    public SerializeDictionary(Dictionary<TKey, TValue> targetDictionary)
    {
    
        this.targetDictionary = targetDictionary;
    }

    public void OnBeforeSerialize()
    {
    
        keys = new List<TKey>(targetDictionary.Keys);
        values = new List<TValue>(targetDictionary.Values);
    }

    public void OnAfterDeserialize()
    {
    
        var count = Math.Min(keys.Count, values.Count);
        targetDictionary = new Dictionary<TKey, TValue>(count);
        for (var i = 0; i < count; ++i)
        {
    
            targetDictionary.Add(keys[i], values[i]);
        }
    }
}

#endregion

Usage mode

        Dictionary<string, string> dc = new Dictionary<string, string>();
        dc.Add("Helo","Hello");
        dc.Add("Helo1", "Hello");
        dc.Add("Helo2", "Hello");
        var dicStr=  SerializeDictionary.DicToJson(dc);

Warning

The transferred out string is nothing else json The strings that can be deserialized directly need to be deserialized in the following way

Deserialize dictionary Dictionary

					string requesDataStr=" From above json character string ";
                     Dictionary<string, List<string>> dicListList =    new Dictionary<string, List<string>>();

                     dicListList = JsonConvert.DeserializeObject<Dictionary<string, List<string>>>(requesDataStr);

                        List<string> dicKeyList = dicListList["keys"];
                        List<string> dicValueList = dicListList["values"];

                        var count = Math.Min(dicKeyList.Count, dicKeyList.Count);
                        var targetdicc = new Dictionary<string, string>(count);
                        for (var i2 = 0; i2 < count; ++i2)
                        {
    
                            targetdicc.Add(dicKeyList[i2], dicValueList[i2]);
                        }
                       //targetdicc It's from above json It turned out to be Dictionary

serialize List

		     // Can be deserialized 
            JsonConvert.DeserializeObject<T>(string);

// List<T>
[Serializable]
public class SerializationList<T>
{
    [SerializeField]
    List<T> targetList;
    public List<T> ToList() { return targetList; }

    public SerializationList(List<T> target)
    {
        this.targetList = target;
    }
}


public class SerializeList
{
    public static string List2Json<T>(List<T> l)
    {
        return JsonUtility.ToJson(new SerializationList<T>(l));
    }

    public static List<T> Json2List<T>(string str)
    {
        return JsonUtility.FromJson<SerializationList<T>>(str).ToList();
    }
}

Use

    // Start is called before the first frame update
    void Start()
    {
        List<string> liststr = new List<string>();
        liststr.Add("dsd");
        liststr.Add("ds1d");
        liststr.Add("d1sd");
        string listInfo = SerializeList.List2Json(liststr);// serialize 
        Debug.Log(listInfo);

        List<string> list2 = new List<string>();
        List<string>  c = SerializeList.Json2List<string>(listInfo);// Deserialization , Inside the angle brackets is the type of list Just fill in that type .

    }

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