Blob是浏览器存储的原始数据的文件状对象。
您可以在以下位置看到它们
chrome://blob-internals/
可以通过脚本注入使用Selenium来获取blob的内容。但是，您必须通过在创建Blob的页面/域上运行脚本来遵守跨源策略：
def get_file_content_chrome(driver, uri): result = driver.execute_async_script(""" var uri = arguments[0]; var callback = arguments[1]; var tobase64 = function(buffer){for(var r,n=new Uint8Array(buffer),t=n.length,a=new Uint8Array(4*Math.ceil(t/3)),i=new Uint8Array(64),o=0,c=0;64>c;++c)i[c]="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".charCodeAt(c);for(c=0;t-t%3>c;c+=3,o+=4)r=n[c]<<16|n[c+1]<<8|n[c+2],a[o]=i[r>>18],a[o+1]=i[r>>12&63],a[o+2]=i[r>>6&63],a[o+3]=i[63&r];return t%3===1?(r=n[t-1],a[o]=i[r>>2],a[o+1]=i[r<<4&63],a[o+2]=61,a[o+3]=61):t%3===2&&(r=(n[t-2]<<8)+n[t-1],a[o]=i[r>>10],a[o+1]=i[r>>4&63],a[o+2]=i[r<<2&63],a[o+3]=61),new TextDeprer("ascii").depre(a)}; var xhr = new XMLHttpRequest(); xhr.responseType = 'arraybuffer'; xhr.onload = function(){ callback(tobase64(xhr.response)) }; xhr.onerror = function(){ callback(xhr.status) }; xhr.open('GET', uri); xhr.send(); """, uri) if type(result) == int : raise Exception("Request failed with status %s" % result) return base64.b64depre(result)bytes = get_file_content_chrome(driver, "blob:https://developer.mozilla.org/7f9557f4-d8c8-4353-9752-5a49e85058f5")
