ReedAndWeep Posted July 8, 2022 Share Posted July 8, 2022 I have a query running about a particular concertina, and attempted to upload some pictures. This failed as what was shown was a textured block of colour, rather than an image. A very similar outcome is experienced when attempting to upload an image to image search engines such as google, yandex, and bing. I use the Firefox browser (102.0 64 bit) running on Linux. The browser is kept up-to-date, and uses most of the Mozilla authorised and suggested privacy, non-tracking settings. I discovered that GIF images uploaded to concertina.net without problem (as seen on my "hexagon" profile picture). To cut a very long story short - and to help any others who may run into this issue - the problem is with the HTML5 usage of "webcanvas" to upload and edit images. "Canvas" is a major privacy leak, and so is one of the things that can be disabled in the Firefox browser by the user. Switch Canvas support back on for the particular upload/on-line edit - and you should be OK. As you have to be logged in to the site to post or upload pictures, there is not so much of a privacy/tracking issue. Switching it back on for google etc. image searching however is a different matter. I think the way GIFs slip through - not using HTML5 Canvas - is probably a bug rather than a feature, and should not be relied upon in the long term. The format does not support photographic type images as well as JPEG, JPG, or PNG anyway. Another work around (that currently works) is to use a photohost such as imgur, that does not require HTML5 Canvas to upload/edit/trim, and link to that 3rd party hosted image. Quote Link to comment Share on other sites More sharing options...
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