Metamask: err_cleartext_not_permitted error while running Dapp on Android Metamask

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Metamask Error: ERR_CLEARTEXT_NOT_PERMITTED When Using Dapp on Android

As a cryptocurrency enthusiast, the world of Web3 and blockchain technologies is probably not unfamiliar to you. However, when you use the MetaMask browser on your Android device to connect to a decentralized application (Dapp), you may receive the error code ERR_CLEARTEXT_NOT_PERMITTED. In this article, we will explore what this error means, why it occurs, and most importantly, how to fix it.

What is ERR_CLEARTEXT_NOT_PERMITTED?

ERR_CLEARTEXT_NOT_PERMITTED is an error that occurs in the MetaMask browser extension for Android devices. This error usually occurs when you try to interact with a smart contract or access sensitive data using the Web3.js library without proper permission. In other words, it’s an “access control” issue.

Why does ERR_CLEARTEXT_NOT_PERMITTED occur?

There are several reasons why ERRCLEARTEXT_NOT_PERMITTED can occur:

  • Insufficient permissions: The decentralized application you are connecting to may not have the necessary permissions to access sensitive information or interact with your account.
  • Incorrect authorization flow: The Web3.js library may not be configured correctly, resulting in insufficient authorization checks or the use of incorrect authorization protocols.
  • MetaMask extension issues: Sometimes, the MetaMask browser extension can cause conflicts or errors when using Dapp code.

Troubleshooting Steps

To resolve the ERRCLEARTEXT_NOT_PERMITTED error, follow these troubleshooting steps:

  • Check your MetaMask permissions: Make sure you have granted the necessary permissions to the Dapp you are connecting to. To do this, go to Settings > Advanced > Account Management and grant the necessary permissions.
  • Ensure the authorization flow: Check your Dapp code to make sure it is using the correct authorization protocols, such as Web3.js’s „eth_requestAccounts()” or „web3.eth.currentAccount()”. Also, make sure you are passing the correct account ID or private key to function calls.
  • Check MetaMask browser extension settings: If you are using the third-party MetaMask browser extension on your Android device, check its settings to ensure that it is not interfering with Web3.js.
  • Test Dapp code in a different environment: Create a new Dapp project and test it in a different environment (e.g. on the same Android device) to isolate issues due to configurations or errors in specific MetaMask browser extensions.

Additional recommendations

If none of these steps resolve the issue, consider:

  • Contact MetaMask support

    : Contact the MetaMask support team for assistance with troubleshooting and fixing errors.

  • Review Dapp documentation: Check the official documentation for your Dapp project to ensure that it is using the correct authorization protocols and permissions.
  • Web3.js Library Update

    : Make sure you are using the latest version of Web3.js, as older versions may have added or fixed this bug.

By following these instructions and recommendations, you should be able to resolve the ERR_CLEARTEXT_NOT_PERMITTED issue when using a Dapp on Android with Metamask. Happy debugging!