Bug Book Library
The bugs that
we caught in time.
A library of real production bugs caught by Spur on live sites before reaching users, with full forensic details: test, failure step, screenshot, and cost.
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AI Feature Error
Checkout
Copy
Interactions
Payment
Persona
Pricing
UI/UX
>
Severity
Agent
.avif)
Checkout
Mild
Functional Testing
Spur spotted a pickup-only item sitting under the "Items to be Shipped" header in the cart
.avif)
UI/UX
Mild
UI/UX Testing
Spur flagged three subtle issues on Parade Float Supplies' product pages
.avif)
Checkout
Critical
Functional Testing
Spur caught Anolon's Add to Cart button blocking every purchase
Pricing
Medium
Functional Testing
Spur caught Murad's price sorting using original prices instead of actual sale prices
Interactions
Critical
Exploratory Testing
Spur found a broken Best Sellers link sending Skims shoppers to a 404 page
Checkout
Critical
Functional Testing
Spur caught Wander's checkout showing guests $250 less than the actual booking total
UI/UX
High
Functional Testing
Spur caught raw template code showing up on Docusign's subscription plan page
AI Feature Error
High
AI Feature Testing
Spur found a search engine serving cleaning kits when customers looked for gaming consoles
UI/UX
High
Exploratory Testing
Spur caught Pelago's rewards app showing members double their actual redemption limit
Copy Payment
Critical
Exploratory Testing
Spur caught a mismatched review on a shorts PDP
UI/UX
High
UI/UX Testing
Spur flagged four UI issues on Docusign's Brazilian pricing page in a single pass
Checkout Persona
Critical
Exploratory Testing
Spur found HelloFresh's meal selection page stuck on a loading screen mid-checkout
Interactions
High
Functional Testing
Spur found that favorited items were vanishing before shoppers could come back to them
Checkout
Critical
Functional Testing
Spur caught Youfoodz showing "undefined" where the delivery date should be
Pricing Checkout
Critical
Functional Testing
Spur flagged a discount validation error at checkout
Checkout
Mild
Functional Testing
Spur caught a pound sign showing up on Abercrombie's cart page for German shoppers
Checkout UI/UX
Critical
Exploratory Testing
Spur found Eight Sleep's checkout button crashing every purchase attempt with an error
AI Feature Error
Critical
AI Feature Testing
Spur caught Wander's AI concierge going silent mid-conversation
Checkout Interactions
High
AI Feature Testing
Spur found that clicking Afternoon the ticket booking kept showing morning times
Interactions AI Feature Error
Medium
AI Feature Testing
Spur caught the AI chatbot replying in English instead of French