Transaction failed/ was cancelled in Opera Browser

[MicaelaPesado]

Description: When trying to make a transaction in Opera Browser at mobile, either on Rinkeby or Mainnet the transaction takes too long and fails. To reproduce:

1- Go to Slow Trade. 2- Submint deposit. 3- Specify an amount to deposit. 4- Tap on "Submint deposit". 5- Observe.

Expected result: The transaction is succesfully made.

Actual result: The transaction takes too long and it fails after the wallet approval.

Device: Moto G6 play Android version: 8.0.0 Browser: Opera app Net: Rinkeby and Mainnet.

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