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State of HTML 2025

Content

Embedding, multimedia, data, and other content-related features.

We're highlighting up-and-coming features or libraries we think you should know about.

Feature Highlight: hidden="until-found"

Did you know that browsers can now play hide-and-seek? The hidden="until-found" attribute lets you hide an element until the user triggers it, by (for example) clicking an anchor link pointing to it.

Right now the feature is definitely in its “hidden” state, with 79.4% of respondents having never even heard about it before. And browser support is still sparse (looking at you, Safari!). But once interoperability improves, it might just turn out to be worth adding to your toolbelt.

Baseline: Limited Availability

Learn more

Useful Resources

Innhold Erfaring & Følelser

Both the most liked and most disliked features were security-related: the Sanitizer API drew the most positive opinions, while Content-Security Policy topped the frustration list.

This contrast highlights how security mechanisms that reduce friction and integrate cleanly with existing workflows are welcomed, while those that impose rigid policies, demand meticulous configuration, or break previously working code can generate resentment.

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1
Content
54.3%
24.5%
20.4%
4,728
2
Content
48.1%
27.9%
23.4%
4,726
3
Content
29.8%
27.6%
42.2%
4,695
4
Content
19.6%
28.7%
51.1%
4,715
5
Content
10.2%
21.9%
67.6%
4,724
6
Content
8.1%
35%
56.5%
4,735
7
Content
4.7%
12.6%
82.3%
4,690
8
Content
17.4%
79.4%
4,713
9
Content
7.1%
91.6%
4,729

Erfaring

  • Brukt det: Respondents who have used an item.
  • Hørt om det: Respondents who have heard about an item, but haven't used it.
  • Aldri hørt om det: Respondents who have never heard about an item.

Oppfatning

  • Positiv: Respondenter som er interessert i å lære mer om en teknologi; eller er villige til å bruke den igjen.
  • Nøytral: Respondenter som hadde en nøytral oppfatning av en teknologi.
  • Negativ: Respondenter som ikke er interessert i å lære mer om en teknologi; eller har brukt den og hatt en negativ opplevelse.
“Used” average:20%
“Positive” average:33%
“Negative” average:5%

Content Pain Points

The data paints a very clear picture: By far the most pressing content point is HTML reuse, both across pages, and within the same page. Even though this is already possible through build tools and component-based front-end frameworks, it appears there is large demand for a platform-native feature.

What are your pain points around managing content in HTML?
Multiple
Top pain point topics overall.

View:

Items that are not one of “limitations”
0%
20%
40%
60%
80%
100%
1
HTML Reuse
4
2
Browser support
2
3
Internationalization
2
-1
4
1
5
Security & privacy
3
+3
6
Reliance on JavaScript
+9
7
2
8
Tables
2
9
Accessibility
10
Education
11
Headings
12
Tooling
13
Ecosystem issues
1
14
Declarative APIs
15
Reactivity
1
16
Date & Time
17
Styling & customization
1
-12
18
Performance
-12
19
Missing elements
1
20
Responsive design
-2
21
Component-Based Architecture
22
Server-client communication
23
Math on the Web
1
24
Embedding issues
-16
25
Cognitive overload
26
Andre svar
0%
20%
40%
60%
80%
100%
% besvarelser på spørsmål
450
7%
25
5

Anbefalte ressurser

Web Security, v2
Steve Kinney
Temporal

Web Security, v2

Take control of your application's security! Learn how to protect against common vulnerabilities every developer should know.
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