Quick wins for a faster PC:
Repair Windows errors before they cause bigger problemsFix Now →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →If a page uses the right font in your test browser but Percy shows a fallback, check the font request and Percy’s asset-discovery errors first. Percy captures the DOM in the test browser, then discovers assets and renders the snapshot in Percy infrastructure. Make sure the font is reachable, wait for the application’s actual ready state, and trigger lazy loading when needed. Increase Percy’s asset-discovery timeout only if logs show the font request arrives late.
Find which stage is losing the font
Compare the page in the test browser immediately before the Percy snapshot with the rendered Percy result. If the test browser already shows a fallback, the issue is in application loading or test readiness. If it shows the intended font but Percy does not, inspect the Percy build’s network errors and asset-discovery results: a correct browser view does not prove Percy later fetched the font.
Percy’s capture workflow has separate DOM capture, asset-discovery, and rendering stages. Its documented default asset-discovery idle threshold is 100 ms without new network requests; a font request that starts late may fall outside that window. See BrowserStack’s Percy SDK and screenshot capture workflow.
Check the font request and access
- Identify the exact font file URL referenced by the page’s CSS.
- Inspect the Percy build’s network errors and determine whether that URL was requested and whether it succeeded.
- Confirm that Percy’s asset discovery can reach the font’s host. BrowserStack recommends allowing failed asset hosts when required; for protected files, check the relevant authentication configuration.
- Fix the specific blocked, failed, or unauthorized request, then run the snapshot again and inspect the build.
A CSS declaration that names a font does not establish that Percy retrieved its file. BrowserStack’s Percy troubleshooting guidance also calls out failed CSS or font resources, slow elements, and lazy-loaded assets.
Free tools Windows power users keep installed
One-click scans. No signup required.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Wait for the page’s real ready state
Take the snapshot after the application has reached the state the test is meant to compare. Prefer an app-specific readiness signal or selector over an arbitrary delay. Percy’s CLI troubleshooting guidance documents waitForSelector and waitForTimeout; use a timeout when observed load behavior justifies it, not as a substitute for investigating failed requests. The snapshot command configuration does not document a universal dedicated “wait for fonts” snapshot option.
In a scripted browser test, you can also check the required font state in the test browser before calling percySnapshot, where your browser setup supports that check. Treat it as a capture precondition only: Percy still discovers and fetches assets in a later stage, so verify the rendered result in the Percy build.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Adjust asset discovery only when logs point to timing
If the font request is valid but arrives after Percy’s discovery window, increase the relevant network-idle-timeout in Percy configuration or CLI use, then rerun the build. The default documented idle period is 100 ms with no new requests; the workflow documentation notes that it may need to be increased for assets that take longer.
Do not use a large blanket wait to paper over an inaccessible font or a failed request. A timeout helps with late discovery, not broken delivery. Check the network evidence again after changing it.
The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Trigger lazy-loaded fonts or stylesheets
If the page requests a font or stylesheet only after scrolling or interaction, trigger that behavior before snapshotting. For browser-driven tests, perform the relevant app interaction before calling Percy. For CLI snapshots, Percy’s asset-discovery browser does not scroll automatically; BrowserStack documents a beforeSnapshot approach that scrolls the page so lazy-loaded resources enter the viewport. Follow the lazy-loading guide for the CLI configuration.
Use Percy-specific CSS only for an intentional rendering state
Percy-specific CSS is applied in Percy’s rendering environment and can be configured for a snapshot or globally. It can set an intentionally different test appearance, but it cannot make Percy retrieve a font file it cannot access. Avoid forcing a fallback or substitute font to hide a broken request when the real interface is supposed to use the web font. Fix delivery and access first. See Percy-specific CSS documentation.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Choose a fix based on evidence
| Evidence | Likely stage | Intervention | Risk to watch |
|---|---|---|---|
| Fallback already appears before the snapshot | Application or test-browser readiness | Fix application loading or wait for the intended ready state | A forced font in the test could conceal an application regression |
| Pre-snapshot font looks correct; Percy reports a failed or blocked font request | Percy asset discovery or access | Resolve the network or authentication issue and allow the host if required | Longer waits do not repair a denied request |
| Font request appears late in network evidence | Asset-discovery timing | Increase the relevant network-idle timeout and verify the build | Unneeded blanket delays slow snapshots without fixing other failures |
| Resource appears only after scrolling or interaction | Lazy-loading trigger | Trigger the app behavior, or use CLI beforeSnapshot scrolling |
Changing CSS alone does not cause the resource to load |
| Only Percy’s intended style should differ | Percy rendering | Apply Percy-specific CSS for that deliberate condition | Substitute fonts can mask a genuine font-delivery regression |
Troubleshoot common symptoms
Percy shows a fallback, but there is no obvious error
Check the exact font URL and network evidence in the Percy build. A stylesheet reference is not proof of a successful font fetch. Confirm that the host is accessible to asset discovery and that protected resources have the needed access.
The test sees the correct font, but Percy does not
That points toward Percy’s later asset-discovery or rendering stages rather than proving the test is ready to snapshot. Check the Percy request results first; then address access, late requests, or lazy loading according to the evidence.
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
A longer wait changes nothing
Stop increasing delays and inspect the request status and access path. A timeout is appropriate for a demonstrably late request, not a missing, blocked, or unauthorized font.
Changing Percy CSS appears to fix the diff
Verify that the intended result is actually a deliberately different Percy rendering state. If the product should use the original font, treat substituted styling as a possible mask and repair the font request instead.
Or skip the browser setup
For a standalone screenshot rather than a Percy visual-test snapshot, ScreenshotNeo takes a screenshot with one GET request. Its consent-banner, newsletter-popup, and chat-widget cleanup can be turned off; it reports page verdict and billing headers, and bot checks, blank pages, failed loads, timeouts, and cache hits are not billed. It also provides an MCP server for AI agents. The free plan includes 1,000 screenshots per month with no card; paid plans start at $5 for 3,000.
See the ScreenshotNeo documentation for options and response details.
Recommended Free Tools
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpSign up for 1,000 free screenshots a month, with no card.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
