Sezame Wallet

You need to package the sdk and update the package.json of the wallet to point to the last version of the sdk.

Then you can test. Your previous transaction should be automatically removed from the pending history.

Note that I had to create a free etherscan apikey (which is limited to 5 queries per second). It should be enough for the beginning, but we will have to figure out how to deploy our own api soon, in order to avoid our users to have troubles when too much users are using the same api in the same time.
Actually I don't know if the 5 tx/s is limited by api key or by "api key + ip", but i assume it is a global throatling for the api key.