How to save text with blanks

Hello everyone. Am using ckeditor in my backend part of my site for edditing text. Tell me please how to save text from file with blanks.

Example source html:

<div id="faq-container">
{% for o in data %}
        <div class="title">
        <div>{{loop.index}}</div>
            <h2>{{o.question}}</h2>
        </div>
        <div class="data">{{o.answer|raw}}</div>
    {% endfor %}
</div>

After saving file i got next data (or viewing in source mode):

<div id="faq-container">{% for o in data %}
<div class="title">
<div>{{loop.index}}</div>

<h2>{{o.question}}</h2>
</div>

<div class="data">{{o.answer|raw}}</div>
{% endfor %}</div>

How to save structure while file saving? I have idea ckeditror remove all blanks, how to fix it?

Updated:

When iam loading data in config.startupMode = 'source';

The formatting is ok, but when i swich to normal mode and back i got unfomatted text