I'm using chrome 87.0.4280.141, which I believe is the latest, on windows 10, fully updated as of now. I have adblock extension installed but disabled it to see if it changes anything. Also malwarebytes, also disabled for testing purposes. I have cleared my cache. My players have the same issues though I don't know their setups. The steps to reproduce this are to load a game, show the deck, flip a card onto the top, and attempt to place a card onto the map. The results are very inconsistent. Sometimes it will place the card, sometimes the card will just vanish. I'd say about 50% chance of either. The error log gets very chatty when a card "disappears" though The following is the console log after: (1) clicking the deck to successfully draw a card, (2) attempting to drag the card onto the map which fails: 15Mixed Content: The page at '<URL>' was loaded over HTTPS, but requested an insecure element '<URL>'. This request was automatically upgraded to HTTPS, For more information see <URL> (index):1 Mixed Content: The page at '<a href="https://app.roll20.net/editor/" rel="nofollow">https://app.roll20.net/editor/</a>' was loaded over HTTPS, but requested an insecure element '<a href="http://files.d20.io/images/1478/thumb.png?1335737811" rel="nofollow">http://files.d20.io/images/1478/thumb.png?1335737811</a>'. This request was automatically upgraded to HTTPS, For more information see <a href="https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html" rel="nofollow">https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html</a> (index):1 Mixed Content: The page at '<a href="https://app.roll20.net/editor/" rel="nofollow">https://app.roll20.net/editor/</a>' was loaded over HTTPS, but requested an insecure element '<a href="http://files.d20.io/images/1433/med.png?1335737429" rel="nofollow">http://files.d20.io/images/1433/med.png?1335737429</a>'. This request was automatically upgraded to HTTPS, For more information see <a href="https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html" rel="nofollow">https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html</a> (index):1 Mixed Content: The page at '<a href="https://app.roll20.net/editor/" rel="nofollow">https://app.roll20.net/editor/</a>' was loaded over HTTPS, but requested an insecure element '<a href="http://files.d20.io/images/1478/thumb.png?1335737811" rel="nofollow">http://files.d20.io/images/1478/thumb.png?1335737811</a>'. This request was automatically upgraded to HTTPS, For more information see <a href="https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html" rel="nofollow">https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html</a> (index):1 Mixed Content: The page at '<a href="https://app.roll20.net/editor/" rel="nofollow">https://app.roll20.net/editor/</a>' was loaded over HTTPS, but requested an insecure element '<a href="http://files.d20.io/images/1433/med.png?1335737429" rel="nofollow">http://files.d20.io/images/1433/med.png?1335737429</a>'. This request was automatically upgraded to HTTPS, For more information see <a href="https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html" rel="nofollow">https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html</a> (index):1 Mixed Content: The page at '<a href="https://app.roll20.net/editor/" rel="nofollow">https://app.roll20.net/editor/</a>' was loaded over HTTPS, but requested an insecure element '<a href="http://files.d20.io/images/1433/med.png?1335737429" rel="nofollow">http://files.d20.io/images/1433/med.png?1335737429</a>'. This request was automatically upgraded to HTTPS, For more information see <a href="https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html" rel="nofollow">https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html</a> (index):1 Mixed Content: The page at '<a href="https://app.roll20.net/editor/" rel="nofollow">https://app.roll20.net/editor/</a>' was loaded over HTTPS, but requested an insecure element '<a href="http://files.d20.io/images/1433/med.png?1335737429" rel="nofollow">http://files.d20.io/images/1433/med.png?1335737429</a>'. This request was automatically upgraded to HTTPS, For more information see <a href="https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html" rel="nofollow">https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html</a> (index):1 Mixed Content: The page at '<a href="https://app.roll20.net/editor/" rel="nofollow">https://app.roll20.net/editor/</a>' was loaded over HTTPS, but requested an insecure element '<a href="http://files.d20.io/images/1478/thumb.png?1335737811" rel="nofollow">http://files.d20.io/images/1478/thumb.png?1335737811</a>'. This request was automatically upgraded to HTTPS, For more information see <a href="https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html" rel="nofollow">https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html</a> (index):1 Mixed Content: The page at '<a href="https://app.roll20.net/editor/" rel="nofollow">https://app.roll20.net/editor/</a>' was loaded over HTTPS, but requested an insecure element '<a href="http://files.d20.io/images/1433/med.png?1335737429" rel="nofollow">http://files.d20.io/images/1433/med.png?1335737429</a>'. This request was automatically upgraded to HTTPS, For more information see <a href="https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html" rel="nofollow">https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html</a> (index):1 Mixed Content: The page at '<a href="https://app.roll20.net/editor/" rel="nofollow">https://app.roll20.net/editor/</a>' was loaded over HTTPS, but requested an insecure element '<a href="http://files.d20.io/images/1433/med.png?1335737429" rel="nofollow">http://files.d20.io/images/1433/med.png?1335737429</a>'. This request was automatically upgraded to HTTPS, For more information see <a href="https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html" rel="nofollow">https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html</a> (index):1 Mixed Content: The page at '<a href="https://app.roll20.net/editor/" rel="nofollow">https://app.roll20.net/editor/</a>' was loaded over HTTPS, but requested an insecure element '<a href="http://files.d20.io/images/1478/thumb.png?1335737811" rel="nofollow">http://files.d20.io/images/1478/thumb.png?1335737811</a>'. This request was automatically upgraded to HTTPS, For more information see <a href="https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html" rel="nofollow">https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html</a> (index):1 Mixed Content: The page at '<a href="https://app.roll20.net/editor/" rel="nofollow">https://app.roll20.net/editor/</a>' was loaded over HTTPS, but requested an insecure element '<a href="http://files.d20.io/images/1433/med.png?1335737429" rel="nofollow">http://files.d20.io/images/1433/med.png?1335737429</a>'. This request was automatically upgraded to HTTPS, For more information see <a href="https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html" rel="nofollow">https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html</a> (index):1 Mixed Content: The page at '<a href="https://app.roll20.net/editor/" rel="nofollow">https://app.roll20.net/editor/</a>' was loaded over HTTPS, but requested an insecure element '<a href="http://files.d20.io/images/1433/med.png?1335737429" rel="nofollow">http://files.d20.io/images/1433/med.png?1335737429</a>'. This request was automatically upgraded to HTTPS, For more information see <a href="https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html" rel="nofollow">https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html</a> (index):1 Mixed Content: The page at '<a href="https://app.roll20.net/editor/" rel="nofollow">https://app.roll20.net/editor/</a>' was loaded over HTTPS, but requested an insecure element '<a href="http://files.d20.io/images/1433/med.png?1335737429" rel="nofollow">http://files.d20.io/images/1433/med.png?1335737429</a>'. This request was automatically upgraded to HTTPS, For more information see <a href="https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html" rel="nofollow">https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html</a> (index):1 Mixed Content: The page at '<a href="https://app.roll20.net/editor/" rel="nofollow">https://app.roll20.net/editor/</a>' was loaded over HTTPS, but requested an insecure element '<a href="http://files.d20.io/images/1478/thumb.png?13357378115" rel="nofollow">http://files.d20.io/images/1478/thumb.png?13357378115</a>'. This request was automatically upgraded to HTTPS, For more information see <a href="https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html" rel="nofollow">https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html</a> (index):1 Mixed Content: The page at '<a href="https://app.roll20.net/editor/" rel="nofollow">https://app.roll20.net/editor/</a>' was loaded over HTTPS, but requested an insecure element '<a href="http://files.d20.io/images/1478/thumb.png?13357378111610305307541" rel="nofollow">http://files.d20.io/images/1478/thumb.png?13357378111610305307541</a>'. This request was automatically upgraded to HTTPS, For more information see <a href="https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html" rel="nofollow">https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html</a> (index):1 Access to image at '<a href="https://files.d20.io/images/1478/thumb.png?13357378115" rel="nofollow">https://files.d20.io/images/1478/thumb.png?13357378115</a>' from origin '<a href="https://app.roll20.net" rel="nofollow">https://app.roll20.net</a>' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. files.d20.io/images/1478/thumb.png?13357378115:1 Failed to load resource: net::ERR_FAILED app.js?1609865416:585 Error loading graphic, probably due to CORS. Trying once without CORS for <a href="http://files.d20.io/images/1478/thumb.png?1335737811" rel="nofollow">http://files.d20.io/images/1478/thumb.png?1335737811</a> (anonymous) @ app.js?1609865416:585 nrWrapper @ (index):424 (index):1 Access to image at '<a href="https://files.d20.io/images/1478/thumb.png?13357378111610305307541" rel="nofollow">https://files.d20.io/images/1478/thumb.png?13357378111610305307541</a>' from origin '<a href="https://app.roll20.net" rel="nofollow">https://app.roll20.net</a>' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. files.d20.io/images/1478/thumb.png?13357378111610305307541:1 Failed to load resource: net::ERR_FAILED app.js?1609865416:585 Second load attempt failed for <a href="http://files.d20.io/images/1478/thumb.png?13357378111610305307541" rel="nofollow">http://files.d20.io/images/1478/thumb.png?13357378111610305307541</a> l @ app.js?1609865416:585 nrWrapper @ (index):424 DevTools failed to load SourceMap: Could not load content for <a href="https://app.roll20.net/js/d20/underscore-min.map" rel="nofollow">https://app.roll20.net/js/d20/underscore-min.map</a>: Fetch through target failed: Target not supported; Fallback: HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE
