有人在请求 Here Maps 磁贴服务器时遇到 ERR_SPDY_PROTOCOL_ERROR 吗？

Question

它不时发生在 ~~Chrome-based~~ Chrome-based 和 Firefox 浏览器（完全更新版本，全新安装，也在隐身模式），在一些（但不是全部）Windows 机器上。

被调用的例子 URL 是 https://2.base.maps.api.here.com/maptile/2.1/maptile/2f447c1cac/normal.day/11/1071/663/256/png8?xnlp=CL_JSMv3.0.17.0&app_id=*********&app_code=******&lg=pol&criticality=major%2Ccritical

连接状态 "Pending"（但 200 OK）持续 30 秒，然后以无响应结束（仍然 200 OK）。但是控制台正在报告 net:ERR_SPDY_PROTOCOL_ERROR 200 OK。

因此未加载图块，地图无法按预期工作。该许可证是商业许可证（不是免费增值许可证）。

来自 chrome://net-export/ 并由 netlog-viewer 解析的日志包含如下描述：

https://1.base.maps.api.here.com/maptile/2.1/maptile/2f447c1cac/normal.day/11/1075/662/256/png8?xnlp=CL_JSMv3.0.17.0&app_id=******&app_code=******&lg=pol&criticality=major%2Ccritical
Start Time: 2019-04-01 14:29:29.999

t=    0 [st=    0] +REQUEST_ALIVE  [dt=30043]
                    --> has_upload = false
                    --> is_pending = true
                    --> load_flags = 268452672 (BYPASS_TURBO | DO_NOT_SAVE_COOKIES | DO_NOT_SEND_AUTH_DATA | DO_NOT_SEND_COOKIES | MAYBE_USER_GESTURE)
                    --> load_state = 15 (READING_RESPONSE)
                    --> method = "GET"
                    --> net_error = -1 (ERR_IO_PENDING)
                    --> status = "IO_PENDING"
                    --> url = "https://1.base.maps.api.here.com/maptile/2.1/maptile/2f447c1cac/normal.day/11/1075/662/256/png8?xnlp=CL_JSMv3.0.17.0&app_id=*****&app_code=*****&lg=pol&criticality=major%2Ccritical"
t=30043 [st=30043]    HTTP2_STREAM_ERROR
                      --> description = "Server reset stream."
                      --> net_error = "ERR_SPDY_PROTOCOL_ERROR"
                      --> stream_id = 1337
t=30043 [st=30043]   -HTTP_TRANSACTION_READ_BODY
                      --> net_error = -337 (ERR_SPDY_PROTOCOL_ERROR)
t=30043 [st=30043]    FAILED
                      --> net_error = -337 (ERR_SPDY_PROTOCOL_ERROR)
t=30043 [st=30043] -REQUEST_ALIVE
                    --> net_error = -337 (ERR_SPDY_PROTOCOL_ERROR)

Answer 1

HERE 地图解决了这个问题。

有人在请求 Here Maps 磁贴服务器时遇到 ERR_SPDY_PROTOCOL_ERROR 吗？

Does anybody encountered an ERR_SPDY_PROTOCOL_ERROR on request to the Here Maps tile server?

here-api

http2