XF 2.2 mark solution (AJAX) not working

[Earl]

I have implemented the content vote system to a custom entity in my add-on,
Just like this part in post_question_macros template,

                    <xf:if is="$post.isContentVotingSupported()">
                        <xf:macro template="content_vote_macros" name="vote_control"
                            arg-link="posts/vote"
                            arg-content="{$post}" />
                    </xf:if>

                    <xf:if is="$post.canMarkAsQuestionSolution()">
                        <xf:set var="$isSolutionText" value="{{ phrase('unmark_as_solution') }}" />
                        <xf:set var="$makeSolutionText" value="{{ phrase('mark_as_solution') }}" />

                        <a href="{{ link('posts/mark-solution', $post) }}"
                            class="solutionIcon {{ $post.is_question_solution ? 'is-solution' : ''  }} js-solutionControl"
                            data-xf-click="solution-edit"
                            data-sk-marked="addClass:is-solution, titleAttr:sync, {$isSolutionText|for_attr}"
                            data-sk-removed="removeClass:is-solution, titleAttr:sync, {$makeSolutionText|for_attr}"
                            data-label=".u-srOnly"
                            data-xf-init="tooltip"
                            title="{{ $post.is_question_solution ? $isSolutionText : $makeSolutionText }}">
                            <span class="u-srOnly">{{ $post.is_question_solution ? $isSolutionText : $makeSolutionText }}</span>
                        </a>

I do have a similar code in my add-on and here it is:

                                    <xf:macro template="content_vote_macros" name="vote_control"
                                              arg-link="ccsuggestion/vote&id={$suggestion.moderation_suggestion_id}"
                                              arg-content="{$suggestion}"/>


                                    <xf:set var="$isSolutionText" value="{{ phrase('unmark_as_solution') }}"/>
                                    <xf:set var="$makeSolutionText" value="{{ phrase('earl_cm_apply_this_suggestion') }}"/>

                                    <a href="{{ link('ccsuggestion/apply-suggestion', $suggestion) }}"
                                       class="solutionIcon {{ $suggestion.isApplied() ? 'is-solution' : ''  }} js-solutionControl"
                                       data-xf-click="solution-edit"
                                       data-sk-marked="addClass:is-solution, titleAttr:sync, {$isSolutionText|for_attr}"
                                       data-sk-removed="removeClass:is-solution, titleAttr:sync, {$makeSolutionText|for_attr}"
                                       data-label=".u-srOnly"
                                       data-xf-init="tooltip"
                                       title="{{ $suggestion.isApplied() ? $isSolutionText : $makeSolutionText }}">
                                        <span class="u-srOnly">{{ $suggestion.isApplied() ? $isSolutionText : $makeSolutionText }}</span>
                                    </a>

everything works perfectly (ajax in content voting works too), but the only issue is mark as solution's Ajax isn't working.
When I click on this apply tick mark, it just redirects to the confirmation dialog page as opposed to sending data through Ajax




Which part of code I am missing?
Where is the core code located which responsible for this Ajax? Where should I look?

 

[Earl]

okay, Found the solution
Just had to add <xf:js src="xf/message.js" min="1" /> line to the template