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Our API Host Ignores the Query String: Ten Shapes, One Answer, 43 Records Every Time

Our API Host Ignores the Query String: Ten Shapes, One Answer, 43 Records Every Time

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4 min read
What a 404 Costs on app.onepassapps.com: 114 Requests, 1.2 MB, and a Title That Never Changes

What a 404 Costs on app.onepassapps.com: 114 Requests, 1.2 MB, and a Title That Never Changes

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3 min read
Our robots.txt bans 31 crawlers. I tested 7: two got through, and Baidu got a 520.

Our robots.txt bans 31 crawlers. I tested 7: two got through, and Baidu got a 520.

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9 min read
The Transfer Layer of app.onepassapps.com: 56 Pages, All Chunked, and Not One Content-Length

The Transfer Layer of app.onepassapps.com: 56 Pages, All Chunked, and Not One Content-Length

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3 min read
Our carrier rotated our API secret and the longer one broke our header in two

Our carrier rotated our API secret and the longer one broke our header in two

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2 min read
The Edge Layer of app.onepassapps.com: One Header, Three Cache Behaviours, and the Age Clock on Our Five Hashed Assets

The Edge Layer of app.onepassapps.com: One Header, Three Cache Behaviours, and the Age Clock on Our Five Hashed Assets

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5 min read
The API Host Answers 404 to Every Write: What POST, PUT, PATCH and DELETE Return

The API Host Answers 404 to Every Write: What POST, PUT, PATCH and DELETE Return

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4 min read
The Accept-Encoding Contract of app.onepassapps.com: 21 Header Values, 56 Pages, and the Wildcard We Ignore

The Accept-Encoding Contract of app.onepassapps.com: 21 Header Values, 56 Pages, and the Wildcard We Ignore

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5 min read
The Same URL Never Returns the Same Bytes: 56 Pages of app.onepassapps.com and One Per-Request Key

The Same URL Never Returns the Same Bytes: 56 Pages of app.onepassapps.com and One Per-Request Key

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3 min read
Recurring HTTP Data Cleanup Triggers: 900 Seconds Without a Private Executor

Recurring HTTP Data Cleanup Triggers: 900 Seconds Without a Private Executor

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6 min read
Can You Embed app.onepassapps.com? The Frame, Opener and Permission Headers on 56 Pages

Can You Embed app.onepassapps.com? The Frame, Opener and Permission Headers on 56 Pages

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2 min read
Zero Set-Cookie Headers on All 56 Pages of Our Own Site, and the Two Cache Policies

Zero Set-Cookie Headers on All 56 Pages of Our Own Site, and the Two Cache Policies

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2 min read
The Near-Miss Paths: 70 Requests, Ten Spellings, and the Dot-Segment Our Router Will Not Resolve

The Near-Miss Paths: 70 Requests, Ten Spellings, and the Dot-Segment Our Router Will Not Resolve

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5 min read
GitHub's Header Headache: When Oversized HTTP Responses Derail Your Engineering Measurement

GitHub's Header Headache: When Oversized HTTP Responses Derail Your Engineering Measurement

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5 min read
The Two Scripts Cloudflare Appends to Every One of Our 56 Pages: 1,239 Bytes of Email Decoding and a 31,853-Byte Analytics Beacon

The Two Scripts Cloudflare Appends to Every One of Our 56 Pages: 1,239 Bytes of Email Decoding and a 31,853-Byte Analytics Beacon

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3 min read
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