问题
Have been trying to create a campaign with SendGrid API. Adding lists, recipients, and recipients to lists all works fine. However, as soon as I try to add a new campaign my curl response is:
<!-- This is a random-length HTML comment: jbxzwrreejuenlcislnnrtqpepguufquskweywdclekzbirxeqwozopyiewqhjumbhfwyepoosmzwyazpdzexczablujrbjiixmmmqjsashcfuwhguidzmnlqwpkmqkyqiuwbrdbiikvyyfkdxzfkcfvhsiqhpwowvtgvydjfabodxkdoycmhxhwhrqznppcaxevndlmftpomkoivcbkeonofgabbwalstlrajpptuhfdananzdgzlnavbinpxyzrgknkrqhyywwdnyhvgmwkvrcvheadfgdqvfviqdnrniqzfijxchyecjyzleznlwbfdlfbuwrbzlkaeftbhsiyoluymrzohgqxesvxxiadcpucmufdhcoenyeoagnssktmphhaximhfegozmayralqxdbbjfcoxxgeoqjsnbgyejalqmmpesmepqnbwykjaaorvljcxttkasnqxbkvrsshwkzywazfltmiyqdzugoezoaeynbkfsldmliqyiujnnriwgzendfgllnhyhxisimqojpncarhhhcyfxecwentpymluxvakpffuednakvxtplgclyjgprpyvwabkqldocwehynpucpgjukycrbsflglqljjitquqxnghesizdofkdvnzmxdrfopjqtvqvzffndalnaupeclmldvgoabignoeccpkbemyjyjeumyxzefrysrbtwpbdrhnkomvlnsrwctxwzioafmmovkybzpanychdfuvxovsnkuxchzmnuogngdcnuvaxuaejfwh -->
Which isn't even JSON. It worked earlier, and on previous days, but all of a sudden the API responses are making no sense.
来源：https://stackoverflow.com/questions/51313966/sendgrid-random-html-comment-response