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bugfix：【frontend-gray插件】针对fetch的请求，强制不缓存 #1856

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bugfix：【frontend-gray插件】针对fetch的请求，强制不缓存 #1856

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1549e4d
fix: 🐛 【frontend-gray插件】针对fetch的请求，强制不缓存
heimanba Mar 6, 2025
4473f0f
Merge branch 'alibaba:main' into main
heimanba Mar 6, 2025
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1 change: 1 addition & 0 deletions plugins/wasm-go/extensions/frontend-gray/config/config.go
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@ const (
IsPageRequest = "is-page-request"
IsNotFound = "is-not-found"
EnabledGray = "enabled-gray"
SecFetchMode = "sec-fetch-mode"
)

type LogInfo func(format string, args ...interface{})
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6 changes: 6 additions & 0 deletions plugins/wasm-go/extensions/frontend-gray/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,8 @@ func onHttpRequestHeaders(ctx wrapper.HttpContext, grayConfig config.GrayConfig,
}
enabledGray := util.IsGrayEnabled(grayConfig, requestPath)
ctx.SetContext(config.EnabledGray, enabledGray)
secFetchMode, _ := proxywasm.GetHttpRequestHeader("sec-fetch-mode")
ctx.SetContext(config.SecFetchMode, secFetchMode)

if !enabledGray {
log.Infof("gray not enabled")
Expand Down Expand Up @@ -133,6 +135,10 @@ func onHttpResponseHeader(ctx wrapper.HttpContext, grayConfig config.GrayConfig,
ctx.DontReadResponseBody()
return types.ActionContinue
}
secFetchMode, isSecFetchModeOk := ctx.GetContext(config.SecFetchMode).(string)
if isSecFetchModeOk && secFetchMode == "cors" {
proxywasm.ReplaceHttpResponseHeader("cache-control", "no-cache, no-store, max-age=0, must-revalidate")
}
isPageRequest, ok := ctx.GetContext(config.IsPageRequest).(bool)
if !ok {
isPageRequest = false // 默认值
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