Method back

src/main/java/org/htmlunit/History.java:188–194

Goes back one step in the navigation history, if possible. @return this navigation history, after going back one step @throws IOException in case of error

()

     * @throws IOException in case of error
     */
    public History back() throws IOException {
        if (index_ > 0) {
            index_--;
            goToUrlAtCurrentIndex();
        }
        return this;
    }

    /**
     * Goes forward one step in the navigation history, if possible.