hey, i had simlar probs. using a fresh user data dir and a recent chrome helped fix it for me. sometimes the ‘–lang=es’ flag alone doesn’t trim out old locale settings. hope this helps!
I’ve encountered similar issues when trying to set Chrome to use a specific language with Puppeteer. In my experiments I found that simply setting ‘–lang=es’ might not always guarantee that all UI elements or error messages appear in Spanish. I solved this by combining the language flag with creating a fresh user data directory, which seemed to enforce the new locale settings properly. Furthermore, I verified the effective language by checking navigator.language in the page context through page.evaluate. Occasionally, updating Puppeteer and Chrome versions helped ensure that the ‘–lang’ flag was respected as intended.
During my work with Puppeteer I found that setting Chrome’s language solely through ‘–lang=es’ sometimes falls short because the language setting isn’t always applied to all internal components. I resolved this challenge by ensuring that my user profile was cleared so no residual locale settings interfered. Additionally, in my projects I sometimes reinforced the language preference by programmatically setting the ‘Accept-Language’ header within the browser context. After careful testing, I’ve noticed that keeping both Puppeteer and Chrome up to date also minimizes unexpected behavior, thereby reliably enforcing the desired language upon launch.
In my experience setting Chrome’s language with Puppeteer required a bit more than merely using the ‘–lang=es’ flag. I once encountered a situation where the browser ignored this setting due to previous profile data. In my solution, I not only cleaned up user data but also applied the language configuration at the network level by modifying the ‘Accept-Language’ header. This dual approach worked reliably for me, ensuring that both the UI and network interactions reflected the Spanish locale consistently.
In my personal experience, I found that another effective method involved combining the ‘–lang=es’ flag with launching a completely new instance of Chrome using a temporary profile. I created a separate data directory at runtime, which eliminated any conflict from previous sessions or default settings. Additionally, I tweaked some environment variables to ensure the locale was set accurately from both a UI and a network perspective. This approach consistently resulted in Chrome running in Spanish, and it helped me diagnose settings conflicts that might otherwise have been overlooked.