The gyst is, if the querystring portion of the URL uses semicolon format and exceeds ~350 chars, IIS throws a 400 error. The request does not make it to the Angular app.

The documented querystring limit accepted by browsers is typically 2K. However, I have found our Angular apps, hosted by IIS, throw a Bad Request (400) error if the URL length exceeds a few hundred characters. The specific conditions of the failure are:

"We're talking about bringing a new industry and new technology to parts of the United States that have hardly seen wind energy," Roberts said. "The more we can show there's potential, the more people will understand the opportunity—creating more pathways to meet our national energy goals."

"Rather than simply continuing to build wind turbines in already-developed regions of the country, this study shows that we can expand wind energy into areas of the country where we historically haven't seen it," said NREL researcher Travis Williams, who participated in the study. "Innovations, especially low-specific power and taller towers combined with modest cost reductions, could dramatically increase wind energy's potential in the United States."

A recent NREL study has revealed that technology innovations could unlock an additional 80% economically viable wind energy capacity as soon as 2025. Innovations in wind technology—such as on-site manufacturing, taller towers, longer blades, and wake steering—could allow wind power plants (yellow circles on maps) to be deployed in new areas of the United States (shaded regions in second map) compared with areas that are viable with current technology (shaded regions in first map). Graphic by Travis Williams, NREL, using the U.S. Geological Survey's U.S. Wind Turbine Database

/ as path separator, which separates the path from the host and different parts of the path (like in a file system) like for instance in to/separator

You are building your URL wrong (because you probably misunderstood something). There different types of separators in an URL. Take for instance the following URL

The study's results, published in a technical report titled Exploring the Impact of Near-Term Innovations on the Technical Potential of Land-Based Wind Energy, reveal an opportunity for the United States to use wind power more extensively when meeting renewable energy targets. To realize the full potential of these technological advancements, more work remains.

The National Renewable Energy Laboratory is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy LLC.

Learn more about NREL's land-based wind energy research. And be sure to subscribe to NREL's wind energy newsletter for more news like this.

A significant portion of this potential wind energy occurs in regions of the United States with little or no existing wind farm deployment—the Southeast, Gulf Coast, and parts of the East Coast. These areas are close to electrical demand centers, potentially reducing the need for new transmission to deploy wind energy at the scale needed to meet renewable energy goals.

The separator between path and query (ie number 3 from above list) MUST BE a ?. That's defined in the respective RFC If you don't follow that "quasi"-standard no URL parser will be able to find the query.

So, for fixing this issue, use a proper query separator, ie use https://citations.venteksys.com/search?metu=sant.... instead. Then IIS will be able to correctly separate your URL into path and query and happily pass on the request to your backend implementation (assuming that the backend can actually cope with query parameters separated by ;)

For instance, policymakers can play a critical role in reducing other barriers, such as increasing public knowledge of or experience with wind energy, utility experience with integrating wind power (which may not be a consistent supply), workforce capabilities, and developer experience in regions with new wind energy markets.

Second is the separator between the query parameters themselves (ie number 4 from above list). Currently it seems to be widely accepted, that this is done with an &. I'm no expert in angular (I only used it once may years back) but it seems strange, that they would use something different (do you have any canonical source of that). And I don't know any current URLParser/QueryParser that would accept the ; as a parameter separator.

"These results show an unexpected opportunity to utilize wind power more extensively in regions where transmission infrastructure already exists or where incremental transmission could be built relatively cost effectively," said Owen Roberts, an NREL analyst and member of the study, which was funded by the U.S. Department of Energy's Wind Energy Technologies Office.

The URL https://citations.venteksys.com/search;metu=sant..... is sent to IIS. Because there is no ? in there, anything after /search.... is assumed to be part of the path of the resource. Thus IIS tries to locate this resource in the filesystem. On Windows (depending on the version), paths have a defined maximum length. And if the path you are searching for exceeds that maximum length, IIS may return an error.

Wind energy technology innovations studied by NREL can reduce the cost of energy at nearly all locations in the contiguous United States and enable growing access to clean wind energy.

I think IIS might have subfolder name length limit and is treating a semicolon separated URL as a complete segment rather than as query parameters - as it does with the ?-& pattern.

While the United States has excellent wind resources over much of the country, some locations are less windy and, as a result, have not seen much wind energy development. Harnessing wind power in a cost-effective manner has long been a challenge in these areas. But new technologies could make it possible to profitably capture winds blowing higher above the ground across much of the United States.

"Deploying wind power in these regions would reduce the need for governments and utilities to import energy from distant areas to serve local demand and would enable local jobs and local economic growth from land leases and tax revenues," Roberts said.

In a recent National Renewable Energy Laboratory (NREL) study, researchers found that technology innovations making their way into commercial markets today and in coming years could unlock 80% more economically viable wind energy capacity within the contiguous United States. This could go a long way toward helping the nation meet its clean energy goals.