Setting the value of 'dataURL' exceeded the quota

Question

I have a JavaScript code which save string to the Local storage, the string size is 400000,

var dataURL = canvas.toDataURL(\"image/jpg\").toString();
localSt         


        

Answer 1

the chrome local storage default is 25M, so clear your chrome's local storage will be work it. good luck!

Answer 2

It depends on the browser preference and disk space. Compare your two computers' browsers here https://arty.name/localstorage.html and check if they store same no. of characters. You would see the difference.

Answer 3

When your browser reaches to maximum limit it will throw this error Failed to execute 'setItem' on 'Storage': Setting the value of '' exceeded the quota.

• You can handle it like this

 try {
     var count = 100;
     var message = "LocalStorageIsNOTFull";
     for (var i = 0; i <= count; count + 250) {
         message += message;
         localStorage.setItem("stringData", message);
         console.log(localStorage);
         console.log(count);
     }

 }
 catch (e) {
     console.log("Local Storage is full, Please empty data");
     // fires When localstorage gets full
     // you can handle error here or empty the local storage
 }

Answer 4

This type of error can also occur due to following reason :

There is a limit to which you can store value in single localStorage key.

For example, if I write localStorage.setItem('data',allData); then there is a limit set to 'data' key which can store specified number of characters in 'allData' value.

In chrome and firefox you can store upto 5200000 characters in a single key.You can check your browser limit by visiting this site https://arty.name/localstorage.html

So to fix this issue you have to check the number of characters that you are trying to store in a single key.

If you are exceeding the localStorage key's value size, then you have to decrease the size to appropriate limit.

Answer 5

Clearing the local storage with localStorage.clear(); worked for me.

If you're on Firefox you may need to use window.localStorage.clear();