Baoyuantop commented on issue #12960:
URL: https://github.com/apache/apisix/issues/12960#issuecomment-3869161793
In the HTTP protocol (RFC 3986), the character `|` is considered unsafe and
should be encoded as %7C in URLs. APISIX forwarding %7C itself is
standard-compliant and correct behavior. You may refer to the discussions in
#7386 and #9638.
For the current version, you can temporarily use the serverless plugin and
proxy-rewrite plugin to resolve this issue. Refer to the configuration below:
```
{
"plugins": {
"serverless-pre-function": {
"phase": "rewrite",
"functions": [
"return function(conf, ctx) local args = ngx.var.args; if
args and args:find('%%7C') then ngx.var.args = args:gsub('%%7C', '|') end end"
]
},
"proxy-rewrite": {
"uri": "$uri"
}
}
}
```
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