Another very minor update (fine-tune "fetch strategy")

Very minor update

Fixes some cases where load image failed when trying to read meta-data.

New in version 2.20.0 of xIFr is detection of images from Flickr and the opportunity to search for the originating photopage on Flickr.
Version 2.20.1 & 2.20.2 adds a couple of quick minor bugfixes.

New in version 2.20.0 of xIFr is detection of images from Flickr and the opportunity to search for the originating photopage on Flickr - Version 2.20.1 adds a minor bugfix.

New in version 2.20 of xIFr is detection of images from Flickr and the opportunity to search for the originating photopage on Flickr

Prefer "backend-fetch" when possible, and other fix that reduces the number of images xIFr can't open directly from a website.

Very minor fixes and details

This release is a very minor update for normal endusers.
But of course still includes all other improvements to "deep search" made in previous recent releases.

(a bit more) improvements of "deep search"