在使用中遇到字幕无法显示的问题，通过浏览器测试请求提示 502.
直接请求 Jellyfin 或是 fontinass 都正常，fontinass log 如下：
🤖 22:32:06.012 .INFO 字幕URL: http://192.168.1.100:8096/Videos/be2dc9b8-1b8a-25c7-71b7-ab99ae443fe6/be2dc9b81b8a25c771b7ab99ae443fe6/Subtitles/0/0/Stream.ass?ApiKey=xxx
🤖 22:32:06.018 .INFO 加载已缓存的字体 0.85MB [('arial', 400, False) <== ]
🤖 22:32:06.018 .INFO 子集化 1132个字符 0.42ms [Arial]
🤖 22:32:06.018 .INFO ass分析 0.66ms
🤖 22:32:06.019 .INFO 子集化嵌入 0.77ms
🤖 22:32:06.019 .ERROR 存在错误，未缓存
🤖 22:32:06.019 .ERROR 缺少字形 [Arial]态老考送者逃逅逆怎而逐倒怒怕怖候通思速造急性怪瀬总逼ぁあぃきうぎくけこさざしたちっでとなぬねのはばぱひびふぶへべほぼまみむめもゃやゆょよらりるれろわをん肚悟悠ァアィイ那ウェエォオカガキギクグケ傲コゴサザジスズセ傷ソ傻タダチ点ッツ情テデトドナニ背ネ郎像ハバパビピフブプヘベ僕ホボ烛マミムメモヤ烦烧ユョ惧ラリルレロワ惨热ン想胸・ー能都愈意脑愛感無優脱然脸儿愿元兄先光克態腌配酒慕慢入照全公腰关其具腹内再憑冒醒写冬熱决况冷懂准释里重野量金几自凭臭出刀分舌成刑我舒或刚创初删判別利别爬到爱制户父爸刺刻戻爽房所剃鉄片手前才打扔牛剣执物扮扯良創牵找承把抓力抜办加务抢劣护动助劫銭犯抱状狂担動い務招拜勝若ぇえ狱おか拾が拿持包指ぐ化げご挨茬献挺じ医す十千獄ず捅捉せぜ卑そ捕ぞだ捨危却荷つづて厉掉压厌王ど厕に原接玩莫环现去又反揍发取受变珠口句另只叫班叮可台史現吃各理合吉同名后吐向吓吗君搞吧听吵落呀呂做摆告停员瑟呢摧味摸恋呼命璃和恐撞播钱咸钻哇哈哎偶員哥哦哪恢铲锁错生産唤甥用息田由电收男町放商镇啊界恶敗教留畜敢啥啦逮番整聊职长喂開間火関联斯新疯方施病灵族藏聞痛遅无日遇早问嗯间时闹闻★過明嘛嘟星道春昨違是嘱嘲嘴遗阿時附噌降您虑職悪晚院除晨险虫発登険白百虽的随隐隔暖隠隣暮难集蛋监雑盗曝回因团離遺目盯曲直相電国曾替最盾需月有朋看服邂朗望惑朝期真眠在木本地场机眼址着杂坊坏坐村青静杜非束靠条面来杰東型果架螺城某柔胃邪矛查知石音基査頂校邻頭破样根格頼血案行桐塔顔類衣硬确顶顾境预袋碍题風被碰確飄装壊飙飞裤士声複変复外多夜够大天太夫失头社奇楚祝神業女奴饶奸她好西要如禅妈見首妙覚妨親馬妹妻离私见駄駅觉始構种姐姑科姓秒角様解姦称言計程稍騒験娘設婆婚機马話詳穴空突骗骚誰調立嫌高站竟童嫩髪笑謝次笨第鬼魂魄歉等歌子魔字止正学警歩歳死它守安完算定实実管客计认讨让记讲害殴家许殺论设毁寄密识诉母词译比毕试毛话察该详语说请诸对寺读対谁调射将谈尋小少谓气気谢就水居池決类鱼岁没財貴買治精況糕糟注質系洋納洛洞财败紧货贵活終組経結赔浮走絶海赶起消越涯緊跑緒距跟巡淡巧差路己已深巴混添一縁清帅万丈三上下希不与渐且业东丝渡两温个中帰常为帽繁久么之乌乔幕乗也习买乱干平年并广広了庆予事于亏源应底店些交度产亨座级身京庭亮亲康人麻线什组仅滅细今車从经黒结仔他仗付给滚绝统代绣以继仪们件任绽开漂弄伏式引缘伙会伝传张鼠伤輩漬估伴張強强鼻似但位低住归体当何罚作潜你形齢车罪软轴役轻载使往龄待辆很辈徊羊後美输得徘供龟羡羨微边込羽达便激係心必过忍濑近还这进応保远违连信迟快迫修念迷俺翻追
🤖 22:32:06.019 .INFO 字幕处理完成: 0.07MB ==> 0.13MB
🤖 22:32:06.019 .INFO ----------------------------------------------------------------
🌏 22:32:06.019 .INFO 192.168.1.1:48200 - "GET /Videos/be2dc9b8-1b8a-25c7-71b7-ab99ae443fe6/be2dc9b81b8a25c771b7ab99ae443fe6/Subtitles/0/0/Stream.ass?ApiKey=xxx HTTP/1.0" 200
nginx 有以下错误 log：
2026/05/02 22:32:12 [error] 21051#0: *380 upstream sent too big header while reading response header from upstream, client: 192.168.1.98, server: jellyfin.xxx.xxx, request: "GET /Videos/be2dc9b8-1b8a-25c7-71b7-ab99ae443fe6/be2dc9b81b8a25c771b7ab99ae443fe6/Subtitles/0/0/Stream.ass?ApiKey=xxx HTTP/1.1", upstream: "http://192.168.1.100:8011/Videos/be2dc9b8-1b8a-25c7-71b7-ab99ae443fe6/be2dc9b81b8a25c771b7ab99ae443fe6/Subtitles/0/0/Stream.ass?ApiKey=xxx", host: "jellyfin.xxx.xxx"
直接请求 fontinass 的响应头如下：
HTTP/1.1 200 OK
date: Sat, 02 May 2026 15:03:52 GMT
server: uvicorn
content-type: text/x-ssa
error: 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
srt: false
content-length: 137411
看起来是把缺少字形的错误信息直接放在响应头里了？
在使用中遇到字幕无法显示的问题，通过浏览器测试请求提示 502.
直接请求 Jellyfin 或是 fontinass 都正常，fontinass log 如下：
nginx 有以下错误 log：
直接请求 fontinass 的响应头如下：
看起来是把缺少字形的错误信息直接放在响应头里了？