Chrome高版本浏览器img通过src获取图片失败
解決方案總結:
1、打開新網頁,瀏覽器輸入:??chrome://flags/#block-insecure-private-network-requests,改成Disabled,重啟瀏覽器。(需要客戶手動操作,不采納)
2、給img添加crossOrigin 屬性(此方法不好用,can i use顯示瀏覽器不支持img 標簽的 src跨域問題
3、<meta name="referrer" content="no-referrer-when-downgrade" /> 參考:change referrer-policy in react js(未采用不適合項目)
4、前端設置方法(?參考HTTP請求之referrer與Referrer-Policy)
???????① 通過Referrer-Policy HTTP header設置:Referrer-Policy: origin
????????②通過<meta>元素改變Referrer Policy,直接修改名為referrer的內容
<meta name="referrer" content="origin">
????????③ 給 <a>?<area><img><iframe>?或<link>元素設置referrerpolicy屬性
<a href="http://example.com" referrerpolicy="origin">
????????④ 如需設置不顯示referrer信息,可以給 <a><area>?<link>元素設置rel的鏈接關系。
<a href="http://example.com" rel="noreferrer">
react,img標簽src獲取圖片提示跨域,
<img src={originSrc[i]} key={i} />控制臺提示:
Access to image at 'http://127.0.0.1:15284/C:/Users/28929/camera_0.jpg?1655275037147' from origin 'http://171.5.37.13' has been blocked by CORS policy: The request client is not a secure context and the resource is in more-private address space `local`. Access to image at 'http://127.0.0.1:15284/C:/Users/28929/camera_1.jpg?1655275037147' from origin 'http://171.5.37.13' has been blocked by CORS policy: The request client is not a secure context and the resource is in more-private address space `local`.分析:
1、谷歌94版本上基本上端口號4位成功,5位失敗,此時誤以為是端口5位數導致(端口隨機生成),但隨著操作次數增多發現,4位端口號也會失敗,如下:
Access to image at 'http://127.0.0.1:1042/C:/Users/28929/camera_0.jpg?1655279684455' from origin 'http://171.5.37.13' has been blocked by CORS policy: The request client is not a secure context and the resource is in more-private address space `local`.?2、谷歌84版本,4、5位端口號都獲取圖片成功,查看資料得知Chrome 新的默認 Referrer-Policy : strict-origin-when-cross-origin
?3、后來又看到一篇文章:HTTP請求之referrer與Referrer-Policy?,對比成功和失敗發現
? ? 失敗:
GeneralRequest URL: http://127.0.0.1:23246/C:/Users/28929/camera_0.jpg?1655279684455Referrer Policy: strict-origin-when-cross-origin Response HeadersReferer: http://171.5.37.13/...成功:
GeneralRequest URL: http://127.0.0.1:23382/C:/Users/28929/camera_0.jpg?1655280203114Request Method: GETStatus Code: 200 OKRemote Address: 127.0.0.1:23382Referrer Policy: strict-origin-when-cross-origin Response Headers...Accept: image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8Accept-Encoding: gzip, deflate, brAccept-Language: zh-CN,zh;q=0.9Connection: keep-aliveHost: 127.0.0.1:23382Referer: http://172.27.1.144/...試了一把,誒?
<img src={originSrc[i]} referrerpolicy='origin' key={i} />好像靠譜,至此問題終于解決。
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總結
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