Why we keep local copy of jquery? that lowers load speed!

Question

For better performace I bleive using the cache version is better:

in qa-include\qa-page.php

replace

$qa_content['script_rel']=array('qa-content/jquery-1.7.2.min.js')

with

$qa_content['script_rel']=array('http://code.jquery.com/jquery-latest.min.js')

Comments

Good suggestion. However, because jQuery interface varies according to version,we should appoint version closely to evade compatibility issue. In addition, it may be better to appoint jQuery path with admin panel.
$qa_content['script_rel']=array('http://code.jquery.com/jquery-1.7.2.min.js)

---

Why not to use the latest? ...jquery-latest.min.js'

---

This is because the latest version may be incompatible with old version. jQuery values backward compatibility very much, but is not without exception. Therefore, it is risky generally to use jQuery unlike the version that Q2A guarantees.

Another reason (good point) to use local copy:
When CDN fell, we can display site without coming under influence.

---

Got it thanks

---

If you use google as your CDN, it's more likely that your website fails than google :P

---

what do you mean? you mean the website of many people who use google CDN fail? then where to cache it?

Answer 1

I am using the jquery CDN by google with fallback to local jquery file, this is the code from my advanced theme:

        // override head_script() to insert jquery CDN script
        function head_script() {
            if (isset($this->content['script'])) {
                foreach ($this->content['script'] as $scriptline) {
                    // $this->output_raw($scriptline);
                    if( strpos($scriptline, 'jquery') === false ) {
                        $this->output_raw($scriptline);
                    }
                    else {
                        $this->output_raw('<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.1/jquery.min.js" type="text/javascript"></script>   <script type="text/javascript">window.jQuery || document.write(\'<script src="./qa-content/jquery-1.7.2.min.js"><\/script>\')</script>');
                    }
                }
            }
        }

Maybe that helps.

Comments

What do you mean by advanced theme?

---

http://www.question2answer.org/themes.php#advanced

File: qa-theme\yourtheme\qa-theme.php

---

Thank you for the info