Issue Summary

As per the title, if you attempt to run a Pipelines build manually, you will see the following error message, in case you are using Safari:

An unidentified error occurred. Please try again.

The build will execute just fine, but the error will always show up.

Steps to Reproduce

1. Log in to Bitbucket using Safari;
2. Navigate to any repository that has a valid bitbucket-pipelines.yml configuration in it;
3. Click on the Pipelines tab > Run Pipelines;
4. Run any Pipelines build;
5. You will see the following error message

   An unidentified error occurred. Please try again.
   

Expected Results

The Pipelines build will execute normally, without any error messages showing up in the UI

Actual Results

The below exception is thrown:

An unidentified error occurred. Please try again.

Workaround

Use either Chrome or Firefox, which don't have this error message, or ignore the error message altogether.