Try exiting Vi

            function tryPrepareAndResolve() {

                if(getTerminalContents().length === 0 && !isVmLoading()) {

                    // We don't have a prompt, and the VM doesn't appear to be loading.

                    // So maybe the user has opened an editor or a pager. Let's try to get out of this.

                    // So maybe the user has opened a pager. Let's try to get out of this, using Ctrl+C.

                    abort()

                }

                if(getTerminalContents().length === 0 && !isVmLoading()) {

                    // If there is still no prompt, and just like before, the VM isn't loading,

                    // Ctrl+C apparently didn't work to exit whatever we were in.

                    // So we are probably in Vi.

                    // Try exiting that.

                    runCommand(":q!")

                }

                if (getTerminalContents().length > 0) {

                    // We have a prompt, so we can prepare and resolve.

                    clearInterval(intervalId)