A few seconds after loading the tlwebaccess agent page, warnings about preloaded SVGs not being used (fast enough) are logged to the console. Chrome: > The resource https://lab-101.lkpg.cendio.se:300/app/images/warning.svg was preloaded using link preload but not used within a few seconds from the window's load event. Please make sure it has an appropriate `as` value and it is preloaded intentionally. > The resource https://lab-101.lkpg.cendio.se:300/app/images/info.svg was preloaded using link preload but not used within a few seconds from the window's load event. Please make sure it has an appropriate `as` value and it is preloaded intentionally. > The resource https://lab-101.lkpg.cendio.se:300/app/images/error.svg was preloaded using link preload but not used within a few seconds from the window's load event. Please make sure it has an appropriate `as` value and it is preloaded intentionally. Similar warnings are logged in Safari and Firefox. This is probably not something that impacts us a lot, but for the sake of presentation, we should look at if there is something we can do to get rid of the warnings.
The browsers complain because they expect preloaded items to be used right away. But these images are for our error popup, which is rarely used. But we need this preload to avoid getting an "image missing" placeholder when that popup is initially shown.