Topic: and again : refresh

[zmarfak]

Hi,
I have a webpage with graphs coming from Meteobridge , the html page is embedded in an iframe.
Problem is that I don't see the "actual" data.
Refresh does (F5 in Firefox) not help.
I have to do a Ctrl+F5 (clear cache in Firefox) to display the data.
Is there a way to see the "actual" data without clearing the cache ?

page : https://www.matar.be/weather/wxmbdaily.php

Thanks for any ideas.
 

[the beteljuice]

Two things you can try.

1/ In your main page modify the 'refresh' code

Code: [Select]

<script type="text/javascript">
        function refreshIFrame() {
            var x = document.getElementById("graph");
//            x.contentWindow.location.reload();
x.src += ' ';
            var t = setTimeout(refreshIFrame, 300000);
        }
    </script>
2/ Add in the graph page header

Code: [Select]

<meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate">
<meta http-equiv="Expires" content="0">


[ConligWX]

Browsers do tend to cache file yes, but your webserver may also do this if it uses Zend OpCache in php.

if you  edit your php.ini file there is an entry called:

opcache.blacklist_filename=xxx.txt

create a blacklist text file somewhere on your webserver. Add pathname/filename to the text file. this allows you to tell opcache to not cache then files.

[zmarfak]

Thank you both for your input.

@the beteljuice
I have changed it, on first sight, it does not help 

@ConligWX
The Zend OPcache is indeed activate on the site (see attachments)
Unfortunate I cannot acces it, it's not available in the Plesk portal on provided by my hoster.

[wvdkuil]

This is the link to the graph in an iFrame

Code: [Select]

<iframe id="graph" height="750" width="640px" src="https://www.matar.be/weather/day/daily_graph.html"
style="border: 1px solid #3173B1;"> </iframe>
If it is a php page you are calling this frame you could add a '?t='.time()  to the .html
Next time the page is loaded the value of time() will be different so it seems another src for the browser

Or use a small PHP script, lets name it daily_graph.php, put it in the same folder as the daily_graph.html

Code: [Select]

<?php include 'daily_graph.html'; ?>
And change the iFrame code to

Code: [Select]

<iframe id="graph" height="750" width="640px" src="https://www.matar.be/weather/day/daily_graph.php"
style="border: 1px solid #3173B1;"> </iframe>That will do the trick (most of the times).

Wim
 

[the beteljuice]

Javascript appears to be 'broken' on your site 

If you look at that or the home page nothing is being updated after the initial page load. (check the time / date stamp - it never changes)

[zmarfak]

Wim,
I used your second suggestion and it works.

Thank you

[zmarfak]

Javascript appears to be 'broken' on your site 
If you look at that or the home page nothing is being updated after the initial page load. (check the time / date stamp - it never changes)

Do you mean this setting as described on Ken's page, because it's commented out in my case :

$SITE['ajaxScript'] = 'ajaxWLwx.js';
    This setting specifies the filename of the AJAX JavaScript that will read the WeatherFlash WLrealtime.txt file and update your pages with new data.
    Comment out this setting (by placing either # or // in the front of this line) if you do not want AJAX updates active on your website pages.

[the beteljuice]

... That explains it !