If you can try and edit this file mdocs-functions.php:
line 486
From this
<iframe class="mdocs-google-doc" src="https://docs.google.com/viewer?url=<?php echo $file; ?>&embedded=true" style="border: none;"></iframe>
To this
<iframe class="mdocs-google-doc" src="//drive.google.com/viewer?url=<?php echo $file; ?>&embedded=true" style="border: none;"></iframe>
line 488
From this
} else return '<iframe class="mdocs-google-doc" src="https://docs.google.com/viewer?url='.$file.'&embedded=true" style="border: none;"></iframe>';
To this
} else return '<iframe class="mdocs-google-doc" src="//drive.google.com/viewer?url='.$file.'&embedded=true" style="border: none;"></iframe>';
Also try this goto Setting>Permalinks and press save.
I’ve done both those… the code is now the new code and i resaved permalinks. But still same result of blank preview area. There has been another change in google previews that they now seem to look like:
https://drive.google.com/viewerng/viewer?url=http://www.syccolumbus.org/?mdocs-file%3D1816&mdocs-url=1815
THIS works in a new window… if I paste in the URL. It is a link that is the same document as the FIRST document on my document page. (http://www.syccolumbus.org/resources-for-parents/documents-test/) The page will eventually have a password, but I removed that in case you want to check out the live site.
The problem looks to be the an issue with trying to open a https page from a http. Here is the error that I receive when I visited your site.
Refused to display 'https://drive.google.com/viewerng/viewer?url=http://www.syccolumbus.org?mdocs-file%3D1816&mdocs-url=1815&embedded=true&u=0' in a frame because it set 'X-Frame-Options' to 'SAMEORIGIN'.
I have tested https to https and preview works. I will keep looking for a solution but it doesn’t look good the internets doesn’t like this kind of thing anymore.
From what I read… google sites in particular don’t like being framed, and you’re right, mixing content like this is unwise for security reasons (more so the OTHER way around embedding http within https)… how about an option to display the preview in a popup window? (and remove the preview tab on the post, but make a link within the info somewhere)?
I would imagine that most WordPress sites are not https capable or enabled and others might have this problem too… assuming this is the issue.
but maybe there is another creative code solution?
Yeah you are right, I need to reconfigure how I load the preview page I just tested my personal site which is not https and I have the same issue as you.
I will add this to my expanding list of things to do and try and think of a solution asap.
Thanks for the report and stay tuned.
no problem… i don’t really ‘need’ previews, just thought they’d be nice. I think there might be an open source pdf display solution you could package.. but that’d be only pdf files. Although in my case i just decided to convert any doc files to pdf anyway for usability.
I’ll just leave previews turned off.
Do you prefer bug reports being left here for you? I’ll probably be spending a lot of time with this plugin over the next few days/week and am happy to write stuff up as I go, but don’t want to overwhelm you 😉
Thanks again for this awesome looking plugin… the documents page does just what I wanted (I think!)
One quick update… in searching around for preview solutions using Google I found this WP Plugin that is under active development:
https://ww.wp.xz.cn/plugins/google-document-embedder/
If you look at the message on that description and the discussions in the support section for the plugin, it seems that Google has made some very recent changes. I may try this plugin out just to see if it successfully embeds my documents and if so perhaps you could look at her/his code for an idea of workaround.
Thanks the heads up I will take a look at the plugin.
Thanks again and feel free to add more suggestions bugs and other I will get to them when I can
Cheers 🙂
ok.. last post for a while probably.. moving on to other work here till later… BUT i installed that plugin and it worked. check out the ‘teachers resources’ page and i embedded the 1st file (.doc) at the bottom of that page. had to remove the .htaccess you had to get it to work.
hope this helps. I’ll leave things this way for awhile
I have the latest?/recent Mdocs update now. Based on the info I’m seeing now with the 2 plugins and difference between them, could it be that the Google viewer now requires the actual URL to the file, not the wp/mdocs permalink like you use? Again, you can hit my page and see this in action with a working preview below the mdocs section.
Mdocs previews still blank. the iFrame URL the plugin is sending to google is like this:
<iframe class="mdocs-google-doc" src="//drive.google.com/viewer?url=http://www.syccolumbus.org?mdocs-file=1800&mdocs-url=1799&embedded=true" style="border: none;"></iframe>
the GDE plugin (embedded in the same page at the bottom, same document) is working. the iFrame code that GDE embeds looks like:
<iframe src="//docs.google.com/viewer?url=http%3A%2F%2Fwww.syccolumbus.org%2Fwp-content%2Fuploads%2Fmdocs%2FPlaydateHandout.Spanish.doc&hl=en_US&embedded=true" class="gde-frame" style="width:100%; height:500px; border: none;" scrolling="no"></iframe>
oops… one note more. kind of important: Google viewer won’t work if there is your default .htaccess in the folder. I deleted that and the viewer then works. But mdocs keeps recreating it.
I don’t know enough about htaccess syntax to change your default to allow the preview external linking to work. I tried changing the file to be simply:
Allow from all
but that doesn’t work. If I empty the box in your setting page it recreates a zero byte .htaccess file which then also breaks Google preview. The only way I’ve found for preview to work is removing the .htaccess file but it always comes back after a while.
Thanks for the input I am looking at the Google preview plugin trying to figure out the difference, so far no luck. Will let you know if I find anything.
Try the newest version 2.6.13 I think the problem is solved. Let me know.
OK… so here’s whats going on now. As I mentioned, there seems to be a problem with the .htaccess settings in this folder (or in my hosted account i suppose).
When I updated mdocs to the 2.6.13 version, it recreates the .htaccess file with your defaults.
With .htaccess in place,
1) the google embedder preview fails
2) the mdocs preview in the preview tab WORKS!
3) the mdocs preview in a full window (using the magnifying glass) fails with the same error message as the google embedder plugin.
If I delete the .htaccess file, however,
1) the google embedder preview works great
2) the mdocs preview tab continues to work
3) the mdcos preview fullwindow (mag glass) works, but takes a LONG time compared to either of the other 2 previews.
You can see this in action on my site now. It currently has the default .htaccess in the folder.
