Extension talk:MultimediaViewer

Workaround for "There seems to be a technical issue. You can retry or report the issue if it persists."

This is still an issue in 1.43 (as with the other 1.4x series).

Until this is remedied by the code maintainers, the easiest workaround is:

1. Edit: 

extensions/MultimediaViewer/resources/mmv/provider/mmv.provider.Image.js

2. Go to the line containing the function 

	imagePreloadingSupported() {

3. Comment out the following line (using the forwardslashes -- // ): 

return window.XMLHttpRequest !== undefined && 'withCredentials' in new XMLHttpRequest();

4. Add on a new line underneath it (before the } ) to read: 

return false;

That should work around the issue.

Kindly note that every time you update MediaWiki (and also update the extensions) you will likely need to change this as it over-writes previous versions. Joe Beaudoin Jr. Redux (talk) 00:47, 3 March 2025 (UTC)

I was having the same problem with Mediawiki 1.43. Spent several hours over the past few weeks trying a lot of other things. This posting from 3 days ago worked perfectly for me - problems solved. Now, if it can be incorporated into the extension (or fix whatever is causing the problem) so I don't have to manually change the file mmv.provider.Image.js every six months when I upgrade to the latest Mediawiki release. Workman (talk) 02:10, 7 March 2025 (UTC)
Glad this worked. Issue persists in 1.44, too. :( Joe Beaudoin Jr. Redux (talk) 21:02, 5 July 2025 (UTC)
I have created a bug report for this: https://phabricator.wikimedia.org/T398762 Joe Beaudoin Jr. Redux (talk) 21:07, 5 July 2025 (UTC)

footer icons have the "cdx-button" class which is modified by this extension. when enabled, a border is added to the footer icons (at least, in the vector skin). this seems unintended. TheDivineGoddess (talk) 18:05, 17 June 2025 (UTC)

I was able to patch it up on my installation with this:
#footer-poweredbyico > a{ border-style:none; }
but this does seem unintended, so yeah TheDivineGoddess (talk) 18:59, 17 June 2025 (UTC)

The problem also occurs on the Wikipedia, which is an embarrassment. If the picture come from a thumb, its caption retains wiki attributes in the MultimediaViewer, but it it comes from a gallery, then it is stripped to plain text. Laussy (talk) 10:16, 27 June 2025 (UTC)