Failed to execute 'atob' on 'Window': The string to be decoded is not...

Little scum · Posted on 5/17/2024 1:18:33 PM

When the front-end uses js to obtain the Payload content in the jwt, an error occurs as follows:

Uncaught DOMException: Failed to execute 'atob' on 'Window': The string to be decoded is not correctly encoded.

The reason for the anomaly is because:Encoded strings with "-" or "_"(Base64 encoding contains two special characters "+" and "/", which are ASCII codes 43 and 47 in the character set, respectively.) These two characters are where Base64 encoding tends to cause problems, as some software systems do not recognize them. In practical use,You may need to replace these two special characters with other characters), the correct base64 string reference is as follows:

Base64 encoded string composition (what characters are in Base64)
https://www.itsvse.com/thread-10629-1-1.html

solution

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This method also solves the problem of garbled characters in Chinese.

Little scum · Posted on 5/17/2024 2:03:16 PM

Since escape is deprecated, a better way to implement it is as follows:

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Little scum · Posted on 8/12/2024 10:00:50 AM

https://www.npmjs.com/package/js-base64

[JavaScript] Failed to execute 'atob' on 'Window': The string to be decoded is not...

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