htmlpolicy

Oct 21, 2026

Changes in this version

+ func URLScheme(raw string) string

+ type CSSMediumRule struct

+ Action Action

+ Line int

+ Medium string

+ Source string

type Policy

+ func (p *Policy) URLAction(element, attr, rawURL string) (action Action, rewritten bool)

type URLContext

+ Load URLLoad

+ RequestType string

+ type URLLoad int

+ const LoadAutoNavigation

+ const LoadBeacon

+ const LoadNavigation

+ const LoadNone

+ const LoadSubresource

+ const LoadUnknown

+ func (l URLLoad) String() string

Oct 3, 2026

Changes in this version

type AttrRule

+ Source string

type CSSAtRule

+ Source string

type CSSContentTypeRule

+ Source string

type CSSMediaRule

+ Negated bool

+ Source string

type CSSPropertyRule

+ Source string

type CSSPseudoRule

+ Source string

type CSSSchemeRule

+ Source string

type CSSValueRule

+ Source string

type ContentTypeRule

+ Source string

type SchemeRule

+ Source string

type TagRule

+ Source string

type Warning

+ Source string

Jul 5, 2026

Changes in this version

type ApplyOption

+ func WithKeepOriginalURLAttrs() ApplyOption

+ func WithOriginalURLAttr(filter func(URLContext) bool) ApplyOption

Jun 18, 2026

Changes in this version

+ type CSSMediaRule struct

+ Action Action

+ Feature string

+ Line int

+ Value string

Jun 10, 2026

Changes in this version

+ func BuiltinPolicy(name string) (text string, ok bool)

+ func BuiltinPolicyNames() []string

+ type CSSContentTypeRule struct

+ Action Action

+ Line int

+ Properties []string

+ Types []string

+ type FileResolver struct

+ BaseDir string

+ func (r FileResolver) Resolve(from, name string) (canonical, text string, err error)

type ParseOption

+ func WithPrefix(prefix string) ParseOption

+ func WithResolver(r Resolver) ParseOption

type Policy

+ func (p *Policy) Lint() []Warning

+ type Warning struct

+ Line int

+ Message string

+ func (w Warning) String() string

Jun 8, 2026

Changes in this version

type Policy

+ func (p *Policy) URLSchemeAction(element, attr, rawURL string) Action

Jun 7, 2026

Changes in this version

+ type CSSPseudoRule struct

+ Action Action

+ Kind pseudoKind

+ Line int

+ Pattern string

Jun 6, 2026

Changes in this version

type ApplyOption

+ func WithApplyURLPrefetcher(fn func([]URLRef)) ApplyOption

+ type URLRef struct

+ Context URLContext

+ URL string

Jun 1, 2026

Changes in this version

+ const DefaultMaxIncludeDepth

+ func ConvertToUTF8(content []byte, contentType string) ([]byte, bool)

+ type Action int

+ const Allow

+ const CommentOut

+ const Defang

+ const Demote

+ const Placeholder

+ const Strip

+ const Unwrap

+ type ApplyOption func(*applyConfig)

+ func WithApplyURLRewriter(fn URLRewriter) ApplyOption

+ type AttrRule struct

+ Action Action

+ AttrName string

+ Line int

+ Matcher cascadia.Matcher

+ Selector string

+ type CSSAtRule struct

+ Action Action

+ Line int

+ Name string

+ type CSSPropertyRule struct

+ Action Action

+ Line int

+ Properties []string

+ type CSSSchemeRule struct

+ Action Action

+ Line int

+ Properties []string

+ Schemes []string

+ type CSSValueRule struct

+ Action Action

+ Line int

+ Pattern string

+ type ContentTypeRule struct

+ Action Action

+ Attr string

+ Line int

+ Matcher cascadia.Matcher

+ Selector string

+ Types []string

+ type ParseOption func(*parseConfig)

+ func WithMaxIncludeDepth(n int) ParseOption

+ func WithMaxOutputFactor(factor float64) ParseOption

+ func WithPreserveOriginal() ParseOption

+ func WithVerboseLog(w io.Writer) ParseOption

+ type Policy struct

+ func Parse(input string, resolver Resolver, opts ...ParseOption) (*Policy, error)

+ func (p *Policy) ApplyCSS(content []byte, opts ...ApplyOption) ([]byte, bool, error)

+ func (p *Policy) ApplyDocument(content []byte, opts ...ApplyOption) ([]byte, bool, error)

+ func (p *Policy) ApplyHTML(content []byte, opts ...ApplyOption) ([]byte, bool, error)

+ func (p *Policy) ApplyInlineCSS(content []byte, opts ...ApplyOption) ([]byte, bool, error)

+ func (p *Policy) SetPrefix(prefix string) error

+ func (p *Policy) String() string

+ type Resolver interface

+ Resolve func(from, name string) (canonical, text string, err error)

+ type SchemeRule struct

+ Action Action

+ Attr string

+ Line int

+ Matcher cascadia.Matcher

+ Schemes []string

+ Selector string

+ type TagRule struct

+ Action Action

+ Line int

+ Matcher cascadia.Matcher

+ Selector string

+ type URLContext struct

+ Attr string

+ CSSProperty string

+ Element string

+ GetAttr func(name string) string

+ Parent string

+ type URLRewriter func(ctx URLContext, url string) string