> The entire browser ecosystem started out closed source.
That is completely, 100%, untrue and not remotely historically accurate. WorldWideWeb (the first web browser) was public domain. Lynx came out in 1992. Mozilla was open sourced in 1998. There was never a time when the "entire" browser ecosystem was closed source. It certainly didn't start that way.
> Even JavaScript was written to interact with closed source Java Applets.
No, it wasn't. From WP (https://en.wikipedia.org/wiki/JavaScript):
> Netscape decided to add a programming language to Navigator. They pursued two routes to achieve this: collaborating with Sun Microsystems to embed the Java language, while also hiring Brendan Eich to embed the Scheme language.
> The goal was a "language for the masses", "to help nonprogrammers create dynamic, interactive Web sites". Netscape management soon decided that the best option was for Eich to devise a new language, with syntax similar to Java and less like Scheme or other extant scripting languages.
> [...]
> The choice of the JavaScript name has caused confusion, implying that it is directly related to Java. At the time, the dot-com boom had begun and Java was a popular new language, so Eich considered the JavaScript name a marketing ploy by Netscape.
Some people might have used it for the purpose you claim, but that's not why it was invinted.
That is completely, 100%, untrue and not remotely historically accurate. WorldWideWeb (the first web browser) was public domain. Lynx came out in 1992. Mozilla was open sourced in 1998. There was never a time when the "entire" browser ecosystem was closed source. It certainly didn't start that way.
> Even JavaScript was written to interact with closed source Java Applets.
No, it wasn't. From WP (https://en.wikipedia.org/wiki/JavaScript):
> Netscape decided to add a programming language to Navigator. They pursued two routes to achieve this: collaborating with Sun Microsystems to embed the Java language, while also hiring Brendan Eich to embed the Scheme language.
> The goal was a "language for the masses", "to help nonprogrammers create dynamic, interactive Web sites". Netscape management soon decided that the best option was for Eich to devise a new language, with syntax similar to Java and less like Scheme or other extant scripting languages.
> [...]
> The choice of the JavaScript name has caused confusion, implying that it is directly related to Java. At the time, the dot-com boom had begun and Java was a popular new language, so Eich considered the JavaScript name a marketing ploy by Netscape.
Some people might have used it for the purpose you claim, but that's not why it was invinted.