搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊,或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

Learn More

Blocked from extracting canvas data because no user input was detected.

  • 2 回覆
  • 1 有這個問題
  • 208 次檢視
  • 最近回覆由 ooioo1

more options

Hi, I'm using 0penlayers and with this online example : https://openlayers.org/en/latest/examples/export-map.html when clicking "Download PNG" button I get the following message in Firefox console : "Blocked https://openlayers.org/en/latest/examples/export-map.html from extracting canvas data because no user input was detected." And the image downloaded is incorrect. I have no Firefox user message asking for permission to canvas access. I'm using Firefox 107.0.1 (64 bits) Mozilla Firefox Snap for Ubuntu canonical-002-1.0

With Firefox on windows or android the example is working fine. On the example web page there is the javascript code using the canvas.

Bye !

Pierre.

Hi, I'm using 0penlayers and with this online example : https://openlayers.org/en/latest/examples/export-map.html when clicking "Download PNG" button I get the following message in Firefox console : "Blocked https://openlayers.org/en/latest/examples/export-map.html from extracting canvas data because no user input was detected." And the image downloaded is incorrect. I have no Firefox user message asking for permission to canvas access. I'm using Firefox 107.0.1 (64 bits) Mozilla Firefox Snap for Ubuntu canonical-002-1.0 With Firefox on windows or android the example is working fine. On the example web page there is the javascript code using the canvas. Bye ! Pierre.

被選擇的解決方法

Do you have "privacy.resistFingerprinting" enabled in about:config?

從原來的回覆中察看解決方案 👍 1

所有回覆 (2)

more options

選擇的解決方法

Do you have "privacy.resistFingerprinting" enabled in about:config?

more options

Yes indeed ! And resetting it to false solved the problem !

Thanks a lot !